丢了这么多天没更新教程了，自己写到哪里都快忘了。。
前面几篇教程演示了如何在WordPress后台文章编辑页面添加自定义面板，今天的这篇文章不能算教程，和wordpress后台教程的结尾一样，直接放出一个便于使用的类文件，实际使用的时候只需要包含这个类文件，然后加载配置文件即可使用。
使用该类文件可以创建标题、文本框、文本域、下拉框、复选框、图片实时预览上传。不过少了单选框(radio)和文本编辑器，因为个人很少用到这两个，所以就没加上，如果有需要的，完全可以参照我们前面几篇教程自己添加上。
说实话，这个类文件也不完全是我写的，我也是从一个主题上弄来的，然后修改。
文件下载(压缩包内功四个文件，分别是类文件、配置文件、js文件、css文件)
懒人下载
版本控制
2013.07.08，版本1.0
- 修改复选框功能
- 增加编辑器功能
类文件metaboxclass.php：
<?php /* wordpress文章自定义字段类文件 Version: 1.0 Author: 树是我的朋友 Author URI: Http://www.dba.cn License: /courses/highgrade/298.HTML */ class ashu_meta_box{ var $options; var $boxinfo; //构造函数 function ashu_meta_box($options,$boxinfo){ $this->options = $options; $this->boxinfo = $boxinfo; add_action('admin_menu', array(&$this, 'init_boxes')); add_action('save_post', array(&$this, 'save_postdata')); } //初始化 function init_boxes(){ $this->add_script_and_styles(); $this->create_meta_box(); } //加载css和js脚本 function add_script_and_styles(){ if(basename( $_SERVER['PHP_SELF']) == "page.php" || basename( $_SERVER['PHP_SELF']) == "page-new.php" || basename( $_SERVER['PHP_SELF']) == "post-new.php" || basename( $_SERVER['PHP_SELF']) == "post.php" || basename( $_SERVER['PHP_SELF']) == "media-upload.php") { //注意加载的脚本的url wp_enqueue_style('metabox_fields_css', TEMJS_URI. 'metabox_fields.css'); wp_enqueue_script('metabox_fields_js',TEMJS_URI. 'metabox_fields.js'); wp_enqueue_style('thickbox'); wp_enqueue_script('media-upload'); wp_enqueue_script('thickbox'); if(isset($_GET['hijack_target'])) { add_action('admin_head', array(&$this,'add_hijack_var')); } } } /*************************/ function add_hijack_var() { echo "<meta name='hijack_target' content='".$_GET['hijack_target']."' />\n"; } //创建自定义面板 function create_meta_box(){ if ( function_exists('add_meta_box') && is_array($this->boxinfo['page']) ) { foreach ($this->boxinfo['page'] as $area) { if ($this->boxinfo['callback'] == '') $this->boxinfo['callback'] = 'new_meta_boxes'; add_meta_box( $this->boxinfo['id'], $this->boxinfo['title'], array(&$this, $this->boxinfo['callback']), $area, $this->boxinfo['context'], $this->boxinfo['priority'] ); } } } //创建自定义面板的显示函数 function new_meta_boxes(){ global $post; //根据类型调用显示函数 foreach ($this->options as $option) { if (method_exists($this, $option['type'])) { $meta_box_value = get_post_meta($post->ID, $option['id'], true); if($meta_box_value != "") $option['std'] = $meta_box_value; echo '<div class="alt kriesi_meta_box_alt meta_box_'.$option['type'].' meta_box_'.$this->boxinfo['context'].'">'; $this->$option['type']($option); echo '</div>'; } } //隐藏域 echo'<input type="hidden" name="'.$this->boxinfo['id'].'_noncename" id="'.$this->boxinfo['id'].'_noncename" value="'.wp_create_nonce( 'ashumetabox' ).'" />'; } //保存字段数据 function save_postdata() { if( isset( $_POST['post_type'] ) && in_array($_POST['post_type'],$this->boxinfo['page'] ) && (isset($_POST['save']) || isset($_POST['publish']) ) ){ $post_id = $_POST['post_ID']; foreach ($this->options as $option) { if (!wp_verify_nonce($_POST[$this->boxinfo['id'].'_noncename'], 'ashumetabox')) { return $post_id ; } //判断权限 if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id )) return $post_id ; } else { if ( !current_user_can( 'edit_post', $post_id )) return $post_id ; } //将预定义字符转换为html实体 if( $option['type'] == 'tinymce' ){ $data = stripslashes($_POST[$option['id']]); }elseif( $option['type'] == 'checkbox' ){ $data = $_POST[$option['id']]; }else{ $data = htmlspecialchars($_POST[$option['id']], ENT_QUOTES,"UTF-8"); } if(get_post_meta($post_id , $option['id']) == "") add_post_meta($post_id , $option['id'], $data, true); elseif($data != get_post_meta($post_id , $option['id'], true)) update_post_meta($post_id , $option['id'], $data); elseif($data == "") delete_post_meta($post_id , $option['id'], get_post_meta($post_id , $option['id'], true)); } } } //显示标题 function title($values){ echo '<p>'.$values['name'].'</p>'; } //文本框 function text($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><input type="text" size="'.$values['size'].'" value="'.$values['std'].'" id="'.$values['id'].'" name="'.$values['id'].'"/>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //文本域 function textarea($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><textarea class="kriesi_textarea" cols="60" rows="5" id="'.$values['id'].'" name="'.$values['id'].'">'.$values['std'].'</textarea>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //媒体上传 function media($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; //图片上传按钮 global $post_ID, $temp_ID; $uploading_iframe_ID = (int) (0 == $post_ID ? $temp_ID : $post_ID); $media_upload_iframe_src = "media-upload.php?post_id=$uploading_iframe_ID"; $image_upload_iframe_src = apply_filters('image_upload_iframe_src', "$media_upload_iframe_src&type=image"); $button = '<a href="'.$image_upload_iframe_src.'&hijack_target='.$values['id'].'&TB_iframe=true" id="'.$values['id'].'" class="k_hijack button thickbox" onclick="return false;" >上传</a>'; //判断图片格式,图片预览 $image = ''; if($values['std'] != '') { $fileextension = substr($values['std'], strrpos($values['std'], '.') + 1); $extensions = array('png','gif','jpeg','jpg','pdf','tif'); if(in_array($fileextension, $extensions)) { $image = '<img src="'.$values['std'].'" />'; } } echo '<div id="'.$values['id'].'_div" class="kriesi_preview_pic">'.$image .'</div>'; echo '<p>'.$values['name'].'</p><p>'; if($values['desc'] != "") echo '<p>'.$values['desc'].'<br/>'; echo '<input class="kriesi_preview_pic_input" type="text" size="'.$values['size'].'" value="'.$values['std'].'" name="'.$values['id'].'"/>'.$button; echo '</p>'; echo '<br/>'; } //单选框 function radio( $values ){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if($values['std'] == $key) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="radio" class="kcheck" value="'.$key.'" name="'.$values['id'].'"/>'.$value; } } //复选框 function checkbox($values){ echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if( is_array($values['std']) && in_array($key,$values['std'])) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="checkbox" class="kcheck" value="'.$key.'" name="'.$values['id'].'[]"/>'.$value; } echo '<label for="'.$values['id'].'">'.$values['desc'].'</label><br/></p>'; } //下拉框 function dropdown($values){ echo '<p>'.$values['name'].'</p>'; //选择内容可以使页面、分类、菜单、侧边栏和自定义内容 if($values['subtype'] == 'page'){ $select = 'Select page'; $entries = get_pages('title_li=&orderby=name'); }else if($values['subtype'] == 'cat'){ $select = 'Select category'; $entries = get_categories('title_li=&orderby=name&hide_empty=0'); }else if($values['subtype'] == 'menu'){ $select = 'Select Menu in page left'; $entries = get_terms( 'nav_menu', array( 'hide_empty' => false ) ); }else if($values['subtype'] == 'sidebar'){ global $wp_registered_sidebars; $select = 'Select a special sidebar'; $entries = $wp_registered_sidebars; }else{ $select = 'Select...'; $entries = $values['subtype']; } echo '<p><select class="postform" id="'. $values['id'] .'" name="'. $values['id'] .'"> '; echo '<option value="">'.$select .'</option> '; foreach ($entries as $key => $entry){ if($values['subtype'] == 'page'){ $id = $entry->ID; $title = $entry->post_title; }else if($values['subtype'] == 'cat'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'menu'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'sidebar'){ $id = $entry['id']; $title = $entry['name']; }else{ $id = $entry; $title = $key; } if ($values['std'] == $id ){ $selected = "selected='selected'"; }else{ $selected = ""; } echo"<option $selected value='". $id."'>". $title."</option>"; } echo '</select>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //编辑器 function tinymce($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; wp_editor( $values['std'], $values['id'] ); //wp_editor( $values['std'], 'content', array('dfw' => true, 'tabfocus_elements' => 'sample-permalink,post-preview', 'editor_height' => 360) ); //带配置参数 /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式 tinymce=>1,//可视化模式 media_buttons=>0,//取消媒体上传 textarea_rows=>5,//行数设为5 editor_class=>"textareastyle") ); */ } } ?> jquery.noConflict(); jQuery(document).ready(function(){ hijack_media_uploader(); hijack_preview_pic(); }); function hijack_preview_pic(){ jQuery('.kriesi_preview_pic_input').each(function(){ jQuery(this).bind('change focus blur ktrigger', function(){ $select = '#' + jQuery(this).attr('name') + '_div'; $value = jQuery(this).val(); $image = '<img src ="'+$value+'" />'; var $image = jQuery($select).html('').append($image).find('img'); //set timeout because of safari window.setTimeout(function(){ if(parseInt($image.attr('width')) < 20){ jQuery($select).html(''); } },500); }); }); } function hijack_media_uploader(){ $buttons = jQuery('.k_hijack'); $realmediabuttons = jQuery('.media-buttons a'); window.custom_editor = false; $buttons.click(function(){ window.custom_editor = jQuery(this).attr('id'); }); $realmediabuttons.click(function(){ window.custom_editor = false; }); window.original_send_to_editor = window.send_to_editor; window.send_to_editor = function(html){ if (custom_editor) { $img = jQuery(html).attr('src') || jQuery(html).find('img').attr('src') || jQuery(html).attr('href'); jQuery('input[name='+custom_editor+']').val($img).trigger('ktrigger'); custom_editor = false; window.tb_remove(); }else{ window.original_send_to_editor(html); } }; } <?php //自定义面板类的实例化 /**********title*************/ $options = array(); //page参数为在页面和文章中都添加面板 ，可以添加自定义文章类型 //context参数为面板在后台的位置，比如side则显示在侧栏 $boxinfo = array('title' => 'meta box', 'id'=>'ashubox', 'page'=>array('page','post'), 'context'=>'normal', 'priority'=>'low', 'callback'=>''); $options[] = array( "name" => "标题", "type" => "title"); $options[] = array( "name" => "文本框", "desc" => "", "id" => "ashu_text", "size"=>"40", "std" => "", "type" => "text" ); $options[] = array( "name" => "文本域", "desc" => "", "id" => "ashu_textarea", "std" => "", "type" => "textarea" ); $options[] = array( "name" => "图片上传", "desc" => "", "id" => "ashu_upimg", "std" => "", "button_label"=>'上传图片', "type" => "media" ); $options[] = array( "name" => "单选框", "desc" => "", "id" => "ashu_radio", "std" => 1, "buttons" => array('Yes','No'), "type" => "radio" ); $options[] = array( "name" => "复选框", "desc" => "喜欢吃啥？", "id" => "ashu_checkbox", "buttons" => array('苹果','香蕉','西瓜','芒果'), "type" => "checkbox" ); $options[] = array( "name" => "下拉选择", "desc" => "", "id" => "ashu_dropdown", "subtype"=> array( '1'=>'1', '2'=>'2', '3'=>'3' ), "type" => "dropdown" ); $options[] = array( "name" => "选择分类", "desc" => "", "id" => "ashu_cat", "subtype"=> "cat", "type" => "dropdown" ); $options[] = array( "name" => "选择页面", "desc" => "", "id" => "ashu_page", "subtype"=> "page", "type" => "dropdown" ); $options[] = array( "name" => "选择菜单", "desc" => "", "id" => "ashu_menu", "subtype"=> "menu", "type" => "dropdown" ); $options[] = array( "name" => "选择侧边栏", "desc" => "", "id" => "ashu_sidebar", "subtype"=> "sidebar", "type" => "dropdown" ); $options[] = array( "name" => "编辑器", "desc" => "", "id" => "ashu_tinymce", "std" => "", "type" => "tinymce" ); $new_box = new ashu_meta_box($options, $boxinfo); ?> include_once('metaboxclass.php'); include_once('metabox.php'); $ashu_eitor = get_post_meta($post->ID, "ashu_text", true); //ashu_text为配置文件中文本框的id
对应的js文件metabox_fields.js，如果用不到图片上传，可不需要加载js：
<?php /* wordpress文章自定义字段类文件 Version: 1.0 Author: 树是我的朋友 Author URI: http://www.dba.cn License: /courses/highgrade/298.html */ class ashu_meta_box{ var $options; var $boxinfo; //构造函数 function ashu_meta_box($options,$boxinfo){ $this->options = $options; $this->boxinfo = $boxinfo; add_action('admin_menu', array(&$this, 'init_boxes')); add_action('save_post', array(&$this, 'save_postdata')); } //初始化 function init_boxes(){ $this->add_script_and_styles(); $this->create_meta_box(); } //加载css和js脚本 function add_script_and_styles(){ if(basename( $_SERVER['PHP_SELF']) == "page.php" || basename( $_SERVER['PHP_SELF']) == "page-new.php" || basename( $_SERVER['PHP_SELF']) == "post-new.php" || basename( $_SERVER['PHP_SELF']) == "post.php" || basename( $_SERVER['PHP_SELF']) == "media-upload.php") { //注意加载的脚本的url wp_enqueue_style('metabox_fields_css', TEMJS_URI. 'metabox_fields.css'); wp_enqueue_script('metabox_fields_js',TEMJS_URI. 'metabox_fields.js'); wp_enqueue_style('thickbox'); wp_enqueue_script('media-upload'); wp_enqueue_script('thickbox'); if(isset($_GET['hijack_target'])) { add_action('admin_head', array(&$this,'add_hijack_var')); } } } /*************************/ function add_hijack_var() { echo "<meta name='hijack_target' content='".$_GET['hijack_target']."' />\n"; } //创建自定义面板 function create_meta_box(){ if ( function_exists('add_meta_box') && is_array($this->boxinfo['page']) ) { foreach ($this->boxinfo['page'] as $area) { if ($this->boxinfo['callback'] == '') $this->boxinfo['callback'] = 'new_meta_boxes'; add_meta_box( $this->boxinfo['id'], $this->boxinfo['title'], array(&$this, $this->boxinfo['callback']), $area, $this->boxinfo['context'], $this->boxinfo['priority'] ); } } } //创建自定义面板的显示函数 function new_meta_boxes(){ global $post; //根据类型调用显示函数 foreach ($this->options as $option) { if (method_exists($this, $option['type'])) { $meta_box_value = get_post_meta($post->ID, $option['id'], true); if($meta_box_value != "") $option['std'] = $meta_box_value; echo '<div class="alt kriesi_meta_box_alt meta_box_'.$option['type'].' meta_box_'.$this->boxinfo['context'].'">'; $this->$option['type']($option); echo '</div>'; } } //隐藏域 echo'<input type="hidden" name="'.$this->boxinfo['id'].'_noncename" id="'.$this->boxinfo['id'].'_noncename" value="'.wp_create_nonce( 'ashumetabox' ).'" />'; } //保存字段数据 function save_postdata() { if( isset( $_POST['post_type'] ) && in_array($_POST['post_type'],$this->boxinfo['page'] ) && (isset($_POST['save']) || isset($_POST['publish']) ) ){ $post_id = $_POST['post_ID']; foreach ($this->options as $option) { if (!wp_verify_nonce($_POST[$this->boxinfo['id'].'_noncename'], 'ashumetabox')) { return $post_id ; } //判断权限 if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id )) return $post_id ; } else { if ( !current_user_can( 'edit_post', $post_id )) return $post_id ; } //将预定义字符转换为html实体 if( $option['type'] == 'tinymce' ){ $data = stripslashes($_POST[$option['id']]); }elseif( $option['type'] == 'checkbox' ){ $data = $_POST[$option['id']]; }else{ $data = htmlspecialchars($_POST[$option['id']], ENT_QUOTES,"UTF-8"); } if(get_post_meta($post_id , $option['id']) == "") add_post_meta($post_id , $option['id'], $data, true); elseif($data != get_post_meta($post_id , $option['id'], true)) update_post_meta($post_id , $option['id'], $data); elseif($data == "") delete_post_meta($post_id , $option['id'], get_post_meta($post_id , $option['id'], true)); } } } //显示标题 function title($values){ echo '<p>'.$values['name'].'</p>'; } //文本框 function text($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><input type="text" size="'.$values['size'].'" value="'.$values['std'].'" id="'.$values['id'].'" name="'.$values['id'].'"/>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //文本域 function textarea($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><textarea class="kriesi_textarea" cols="60" rows="5" id="'.$values['id'].'" name="'.$values['id'].'">'.$values['std'].'</textarea>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //媒体上传 function media($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; //图片上传按钮 global $post_ID, $temp_ID; $uploading_iframe_ID = (int) (0 == $post_ID ? $temp_ID : $post_ID); $media_upload_iframe_src = "media-upload.php?post_id=$uploading_iframe_ID"; $image_upload_iframe_src = apply_filters('image_upload_iframe_src', "$media_upload_iframe_src&type=image"); $button = '<a href="'.$image_upload_iframe_src.'&hijack_target='.$values['id'].'&TB_iframe=true" id="'.$values['id'].'" class="k_hijack button thickbox" onclick="return false;" >上传</a>'; //判断图片格式,图片预览 $image = ''; if($values['std'] != '') { $fileextension = substr($values['std'], strrpos($values['std'], '.') + 1); $extensions = array('png','gif','jpeg','jpg','pdf','tif'); if(in_array($fileextension, $extensions)) { $image = '<img src="'.$values['std'].'" />'; } } echo '<div id="'.$values['id'].'_div" class="kriesi_preview_pic">'.$image .'</div>'; echo '<p>'.$values['name'].'</p><p>'; if($values['desc'] != "") echo '<p>'.$values['desc'].'<br/>'; echo '<input class="kriesi_preview_pic_input" type="text" size="'.$values['size'].'" value="'.$values['std'].'" name="'.$values['id'].'"/>'.$button; echo '</p>'; echo '<br/>'; } //单选框 function radio( $values ){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if($values['std'] == $key) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="radio" class="kcheck" value="'.$key.'" name="'.$values['id'].'"/>'.$value; } } //复选框 function checkbox($values){ echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if( is_array($values['std']) && in_array($key,$values['std'])) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="checkbox" class="kcheck" value="'.$key.'" name="'.$values['id'].'[]"/>'.$value; } echo '<label for="'.$values['id'].'">'.$values['desc'].'</label><br/></p>'; } //下拉框 function dropdown($values){ echo '<p>'.$values['name'].'</p>'; //选择内容可以使页面、分类、菜单、侧边栏和自定义内容 if($values['subtype'] == 'page'){ $select = 'Select page'; $entries = get_pages('title_li=&orderby=name'); }else if($values['subtype'] == 'cat'){ $select = 'Select category'; $entries = get_categories('title_li=&orderby=name&hide_empty=0'); }else if($values['subtype'] == 'menu'){ $select = 'Select Menu in page left'; $entries = get_terms( 'nav_menu', array( 'hide_empty' => false ) ); }else if($values['subtype'] == 'sidebar'){ global $wp_registered_sidebars; $select = 'Select a special sidebar'; $entries = $wp_registered_sidebars; }else{ $select = 'Select...'; $entries = $values['subtype']; } echo '<p><select class="postform" id="'. $values['id'] .'" name="'. $values['id'] .'"> '; echo '<option value="">'.$select .'</option> '; foreach ($entries as $key => $entry){ if($values['subtype'] == 'page'){ $id = $entry->ID; $title = $entry->post_title; }else if($values['subtype'] == 'cat'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'menu'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'sidebar'){ $id = $entry['id']; $title = $entry['name']; }else{ $id = $entry; $title = $key; } if ($values['std'] == $id ){ $selected = "selected='selected'"; }else{ $selected = ""; } echo"<option $selected value='". $id."'>". $title."</option>"; } echo '</select>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //编辑器 function tinymce($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; wp_editor( $values['std'], $values['id'] ); //wp_editor( $values['std'], 'content', array('dfw' => true, 'tabfocus_elements' => 'sample-permalink,post-preview', 'editor_height' => 360) ); //带配置参数 /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式 tinymce=>1,//可视化模式 media_buttons=>0,//取消媒体上传 textarea_rows=>5,//行数设为5 editor_class=>"textareastyle") ); */ } } ?> jQuery.noConflict(); jQuery(document).ready(function(){ hijack_media_uploader(); hijack_preview_pic(); }); function hijack_preview_pic(){ jQuery('.kriesi_preview_pic_input').each(function(){ jQuery(this).bind('change focus blur ktrigger', function(){ $select = '#' + jQuery(this).attr('name') + '_div'; $value = jQuery(this).val(); $image = '<img src ="'+$value+'" />'; var $image = jQuery($select).html('').append($image).find('img'); //set timeout because of safari window.setTimeout(function(){ if(parseInt($image.attr('width')) < 20){ jQuery($select).html(''); } },500); }); }); } function hijack_media_uploader(){ $buttons = jQuery('.k_hijack'); $realmediabuttons = jQuery('.media-buttons a'); window.custom_editor = false; $buttons.click(function(){ window.custom_editor = jQuery(this).attr('id'); }); $realmediabuttons.click(function(){ window.custom_editor = false; }); window.original_send_to_editor = window.send_to_editor; window.send_to_editor = function(html){ if (custom_editor) { $img = jQuery(html).attr('src') || jQuery(html).find('img').attr('src') || jQuery(html).attr('href'); jQuery('input[name='+custom_editor+']').val($img).trigger('ktrigger'); custom_editor = false; window.tb_remove(); }else{ window.original_send_to_editor(html); } }; } <?php //自定义面板类的实例化 /**********title*************/ $options = array(); //page参数为在页面和文章中都添加面板 ，可以添加自定义文章类型 //context参数为面板在后台的位置，比如side则显示在侧栏 $boxinfo = array('title' => 'meta box', 'id'=>'ashubox', 'page'=>array('page','post'), 'context'=>'normal', 'priority'=>'low', 'callback'=>''); $options[] = array( "name" => "标题", "type" => "title"); $options[] = array( "name" => "文本框", "desc" => "", "id" => "ashu_text", "size"=>"40", "std" => "", "type" => "text" ); $options[] = array( "name" => "文本域", "desc" => "", "id" => "ashu_textarea", "std" => "", "type" => "textarea" ); $options[] = array( "name" => "图片上传", "desc" => "", "id" => "ashu_upimg", "std" => "", "button_label"=>'上传图片', "type" => "media" ); $options[] = array( "name" => "单选框", "desc" => "", "id" => "ashu_radio", "std" => 1, "buttons" => array('Yes','No'), "type" => "radio" ); $options[] = array( "name" => "复选框", "desc" => "喜欢吃啥？", "id" => "ashu_checkbox", "buttons" => array('苹果','香蕉','西瓜','芒果'), "type" => "checkbox" ); $options[] = array( "name" => "下拉选择", "desc" => "", "id" => "ashu_dropdown", "subtype"=> array( '1'=>'1', '2'=>'2', '3'=>'3' ), "type" => "dropdown" ); $options[] = array( "name" => "选择分类", "desc" => "", "id" => "ashu_cat", "subtype"=> "cat", "type" => "dropdown" ); $options[] = array( "name" => "选择页面", "desc" => "", "id" => "ashu_page", "subtype"=> "page", "type" => "dropdown" ); $options[] = array( "name" => "选择菜单", "desc" => "", "id" => "ashu_menu", "subtype"=> "menu", "type" => "dropdown" ); $options[] = array( "name" => "选择侧边栏", "desc" => "", "id" => "ashu_sidebar", "subtype"=> "sidebar", "type" => "dropdown" ); $options[] = array( "name" => "编辑器", "desc" => "", "id" => "ashu_tinymce", "std" => "", "type" => "tinymce" ); $new_box = new ashu_meta_box($options, $boxinfo); ?> include_once('metaboxclass.php'); include_once('metabox.php'); $ashu_eitor = get_post_meta($post->ID, "ashu_text", true); //ashu_text为配置文件中文本框的id
类文件实例化对应的配置文件metabox.php:
注意
复选框保存的数据为数组
<?php /* wordpress文章自定义字段类文件 Version: 1.0 Author: 树是我的朋友 Author URI: http://www.dba.cn License: /courses/highgrade/298.html */ class ashu_meta_box{ var $options; var $boxinfo; //构造函数 function ashu_meta_box($options,$boxinfo){ $this->options = $options; $this->boxinfo = $boxinfo; add_action('admin_menu', array(&$this, 'init_boxes')); add_action('save_post', array(&$this, 'save_postdata')); } //初始化 function init_boxes(){ $this->add_script_and_styles(); $this->create_meta_box(); } //加载css和js脚本 function add_script_and_styles(){ if(basename( $_SERVER['PHP_SELF']) == "page.php" || basename( $_SERVER['PHP_SELF']) == "page-new.php" || basename( $_SERVER['PHP_SELF']) == "post-new.php" || basename( $_SERVER['PHP_SELF']) == "post.php" || basename( $_SERVER['PHP_SELF']) == "media-upload.php") { //注意加载的脚本的url wp_enqueue_style('metabox_fields_css', TEMJS_URI. 'metabox_fields.css'); wp_enqueue_script('metabox_fields_js',TEMJS_URI. 'metabox_fields.js'); wp_enqueue_style('thickbox'); wp_enqueue_script('media-upload'); wp_enqueue_script('thickbox'); if(isset($_GET['hijack_target'])) { add_action('admin_head', array(&$this,'add_hijack_var')); } } } /*************************/ function add_hijack_var() { echo "<meta name='hijack_target' content='".$_GET['hijack_target']."' />\n"; } //创建自定义面板 function create_meta_box(){ if ( function_exists('add_meta_box') && is_array($this->boxinfo['page']) ) { foreach ($this->boxinfo['page'] as $area) { if ($this->boxinfo['callback'] == '') $this->boxinfo['callback'] = 'new_meta_boxes'; add_meta_box( $this->boxinfo['id'], $this->boxinfo['title'], array(&$this, $this->boxinfo['callback']), $area, $this->boxinfo['context'], $this->boxinfo['priority'] ); } } } //创建自定义面板的显示函数 function new_meta_boxes(){ global $post; //根据类型调用显示函数 foreach ($this->options as $option) { if (method_exists($this, $option['type'])) { $meta_box_value = get_post_meta($post->ID, $option['id'], true); if($meta_box_value != "") $option['std'] = $meta_box_value; echo '<div class="alt kriesi_meta_box_alt meta_box_'.$option['type'].' meta_box_'.$this->boxinfo['context'].'">'; $this->$option['type']($option); echo '</div>'; } } //隐藏域 echo'<input type="hidden" name="'.$this->boxinfo['id'].'_noncename" id="'.$this->boxinfo['id'].'_noncename" value="'.wp_create_nonce( 'ashumetabox' ).'" />'; } //保存字段数据 function save_postdata() { if( isset( $_POST['post_type'] ) && in_array($_POST['post_type'],$this->boxinfo['page'] ) && (isset($_POST['save']) || isset($_POST['publish']) ) ){ $post_id = $_POST['post_ID']; foreach ($this->options as $option) { if (!wp_verify_nonce($_POST[$this->boxinfo['id'].'_noncename'], 'ashumetabox')) { return $post_id ; } //判断权限 if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id )) return $post_id ; } else { if ( !current_user_can( 'edit_post', $post_id )) return $post_id ; } //将预定义字符转换为html实体 if( $option['type'] == 'tinymce' ){ $data = stripslashes($_POST[$option['id']]); }elseif( $option['type'] == 'checkbox' ){ $data = $_POST[$option['id']]; }else{ $data = htmlspecialchars($_POST[$option['id']], ENT_QUOTES,"UTF-8"); } if(get_post_meta($post_id , $option['id']) == "") add_post_meta($post_id , $option['id'], $data, true); elseif($data != get_post_meta($post_id , $option['id'], true)) update_post_meta($post_id , $option['id'], $data); elseif($data == "") delete_post_meta($post_id , $option['id'], get_post_meta($post_id , $option['id'], true)); } } } //显示标题 function title($values){ echo '<p>'.$values['name'].'</p>'; } //文本框 function text($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><input type="text" size="'.$values['size'].'" value="'.$values['std'].'" id="'.$values['id'].'" name="'.$values['id'].'"/>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //文本域 function textarea($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><textarea class="kriesi_textarea" cols="60" rows="5" id="'.$values['id'].'" name="'.$values['id'].'">'.$values['std'].'</textarea>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //媒体上传 function media($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; //图片上传按钮 global $post_ID, $temp_ID; $uploading_iframe_ID = (int) (0 == $post_ID ? $temp_ID : $post_ID); $media_upload_iframe_src = "media-upload.php?post_id=$uploading_iframe_ID"; $image_upload_iframe_src = apply_filters('image_upload_iframe_src', "$media_upload_iframe_src&type=image"); $button = '<a href="'.$image_upload_iframe_src.'&hijack_target='.$values['id'].'&TB_iframe=true" id="'.$values['id'].'" class="k_hijack button thickbox" onclick="return false;" >上传</a>'; //判断图片格式,图片预览 $image = ''; if($values['std'] != '') { $fileextension = substr($values['std'], strrpos($values['std'], '.') + 1); $extensions = array('png','gif','jpeg','jpg','pdf','tif'); if(in_array($fileextension, $extensions)) { $image = '<img src="'.$values['std'].'" />'; } } echo '<div id="'.$values['id'].'_div" class="kriesi_preview_pic">'.$image .'</div>'; echo '<p>'.$values['name'].'</p><p>'; if($values['desc'] != "") echo '<p>'.$values['desc'].'<br/>'; echo '<input class="kriesi_preview_pic_input" type="text" size="'.$values['size'].'" value="'.$values['std'].'" name="'.$values['id'].'"/>'.$button; echo '</p>'; echo '<br/>'; } //单选框 function radio( $values ){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if($values['std'] == $key) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="radio" class="kcheck" value="'.$key.'" name="'.$values['id'].'"/>'.$value; } } //复选框 function checkbox($values){ echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if( is_array($values['std']) && in_array($key,$values['std'])) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="checkbox" class="kcheck" value="'.$key.'" name="'.$values['id'].'[]"/>'.$value; } echo '<label for="'.$values['id'].'">'.$values['desc'].'</label><br/></p>'; } //下拉框 function dropdown($values){ echo '<p>'.$values['name'].'</p>'; //选择内容可以使页面、分类、菜单、侧边栏和自定义内容 if($values['subtype'] == 'page'){ $select = 'Select page'; $entries = get_pages('title_li=&orderby=name'); }else if($values['subtype'] == 'cat'){ $select = 'Select category'; $entries = get_categories('title_li=&orderby=name&hide_empty=0'); }else if($values['subtype'] == 'menu'){ $select = 'Select Menu in page left'; $entries = get_terms( 'nav_menu', array( 'hide_empty' => false ) ); }else if($values['subtype'] == 'sidebar'){ global $wp_registered_sidebars; $select = 'Select a special sidebar'; $entries = $wp_registered_sidebars; }else{ $select = 'Select...'; $entries = $values['subtype']; } echo '<p><select class="postform" id="'. $values['id'] .'" name="'. $values['id'] .'"> '; echo '<option value="">'.$select .'</option> '; foreach ($entries as $key => $entry){ if($values['subtype'] == 'page'){ $id = $entry->ID; $title = $entry->post_title; }else if($values['subtype'] == 'cat'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'menu'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'sidebar'){ $id = $entry['id']; $title = $entry['name']; }else{ $id = $entry; $title = $key; } if ($values['std'] == $id ){ $selected = "selected='selected'"; }else{ $selected = ""; } echo"<option $selected value='". $id."'>". $title."</option>"; } echo '</select>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //编辑器 function tinymce($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; wp_editor( $values['std'], $values['id'] ); //wp_editor( $values['std'], 'content', array('dfw' => true, 'tabfocus_elements' => 'sample-permalink,post-preview', 'editor_height' => 360) ); //带配置参数 /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式 tinymce=>1,//可视化模式 media_buttons=>0,//取消媒体上传 textarea_rows=>5,//行数设为5 editor_class=>"textareastyle") ); */ } } ?> jQuery.noConflict(); jQuery(document).ready(function(){ hijack_media_uploader(); hijack_preview_pic(); }); function hijack_preview_pic(){ jQuery('.kriesi_preview_pic_input').each(function(){ jQuery(this).bind('change focus blur ktrigger', function(){ $select = '#' + jQuery(this).attr('name') + '_div'; $value = jQuery(this).val(); $image = '<img src ="'+$value+'" />'; var $image = jQuery($select).html('').append($image).find('img'); //set timeout because of safari window.setTimeout(function(){ if(parseInt($image.attr('width')) < 20){ jQuery($select).html(''); } },500); }); }); } function hijack_media_uploader(){ $buttons = jQuery('.k_hijack'); $realmediabuttons = jQuery('.media-buttons a'); window.custom_editor = false; $buttons.click(function(){ window.custom_editor = jQuery(this).attr('id'); }); $realmediabuttons.click(function(){ window.custom_editor = false; }); window.original_send_to_editor = window.send_to_editor; window.send_to_editor = function(html){ if (custom_editor) { $img = jQuery(html).attr('src') || jQuery(html).find('img').attr('src') || jQuery(html).attr('href'); jQuery('input[name='+custom_editor+']').val($img).trigger('ktrigger'); custom_editor = false; window.tb_remove(); }else{ window.original_send_to_editor(html); } }; } <?php //自定义面板类的实例化 /**********title*************/ $options = array(); //page参数为在页面和文章中都添加面板 ，可以添加自定义文章类型 //context参数为面板在后台的位置，比如side则显示在侧栏 $boxinfo = array('title' => 'meta box', 'id'=>'ashubox', 'page'=>array('page','post'), 'context'=>'normal', 'priority'=>'low', 'callback'=>''); $options[] = array( "name" => "标题", "type" => "title"); $options[] = array( "name" => "文本框", "desc" => "", "id" => "ashu_text", "size"=>"40", "std" => "", "type" => "text" ); $options[] = array( "name" => "文本域", "desc" => "", "id" => "ashu_textarea", "std" => "", "type" => "textarea" ); $options[] = array( "name" => "图片上传", "desc" => "", "id" => "ashu_upimg", "std" => "", "button_label"=>'上传图片', "type" => "media" ); $options[] = array( "name" => "单选框", "desc" => "", "id" => "ashu_radio", "std" => 1, "buttons" => array('Yes','No'), "type" => "radio" ); $options[] = array( "name" => "复选框", "desc" => "喜欢吃啥？", "id" => "ashu_checkbox", "buttons" => array('苹果','香蕉','西瓜','芒果'), "type" => "checkbox" ); $options[] = array( "name" => "下拉选择", "desc" => "", "id" => "ashu_dropdown", "subtype"=> array( '1'=>'1', '2'=>'2', '3'=>'3' ), "type" => "dropdown" ); $options[] = array( "name" => "选择分类", "desc" => "", "id" => "ashu_cat", "subtype"=> "cat", "type" => "dropdown" ); $options[] = array( "name" => "选择页面", "desc" => "", "id" => "ashu_page", "subtype"=> "page", "type" => "dropdown" ); $options[] = array( "name" => "选择菜单", "desc" => "", "id" => "ashu_menu", "subtype"=> "menu", "type" => "dropdown" ); $options[] = array( "name" => "选择侧边栏", "desc" => "", "id" => "ashu_sidebar", "subtype"=> "sidebar", "type" => "dropdown" ); $options[] = array( "name" => "编辑器", "desc" => "", "id" => "ashu_tinymce", "std" => "", "type" => "tinymce" ); $new_box = new ashu_meta_box($options, $boxinfo); ?> include_once('metaboxclass.php'); include_once('metabox.php'); $ashu_eitor = get_post_meta($post->ID, "ashu_text", true); //ashu_text为配置文件中文本框的id
使用方法：在主题中加载这两个文件，比如在主题的functions.php中加载两个文件：
<?php /* wordpress文章自定义字段类文件 Version: 1.0 Author: 树是我的朋友 Author URI: http://www.dba.cn License: /courses/highgrade/298.html */ class ashu_meta_box{ var $options; var $boxinfo; //构造函数 function ashu_meta_box($options,$boxinfo){ $this->options = $options; $this->boxinfo = $boxinfo; add_action('admin_menu', array(&$this, 'init_boxes')); add_action('save_post', array(&$this, 'save_postdata')); } //初始化 function init_boxes(){ $this->add_script_and_styles(); $this->create_meta_box(); } //加载css和js脚本 function add_script_and_styles(){ if(basename( $_SERVER['PHP_SELF']) == "page.php" || basename( $_SERVER['PHP_SELF']) == "page-new.php" || basename( $_SERVER['PHP_SELF']) == "post-new.php" || basename( $_SERVER['PHP_SELF']) == "post.php" || basename( $_SERVER['PHP_SELF']) == "media-upload.php") { //注意加载的脚本的url wp_enqueue_style('metabox_fields_css', TEMJS_URI. 'metabox_fields.css'); wp_enqueue_script('metabox_fields_js',TEMJS_URI. 'metabox_fields.js'); wp_enqueue_style('thickbox'); wp_enqueue_script('media-upload'); wp_enqueue_script('thickbox'); if(isset($_GET['hijack_target'])) { add_action('admin_head', array(&$this,'add_hijack_var')); } } } /*************************/ function add_hijack_var() { echo "<meta name='hijack_target' content='".$_GET['hijack_target']."' />\n"; } //创建自定义面板 function create_meta_box(){ if ( function_exists('add_meta_box') && is_array($this->boxinfo['page']) ) { foreach ($this->boxinfo['page'] as $area) { if ($this->boxinfo['callback'] == '') $this->boxinfo['callback'] = 'new_meta_boxes'; add_meta_box( $this->boxinfo['id'], $this->boxinfo['title'], array(&$this, $this->boxinfo['callback']), $area, $this->boxinfo['context'], $this->boxinfo['priority'] ); } } } //创建自定义面板的显示函数 function new_meta_boxes(){ global $post; //根据类型调用显示函数 foreach ($this->options as $option) { if (method_exists($this, $option['type'])) { $meta_box_value = get_post_meta($post->ID, $option['id'], true); if($meta_box_value != "") $option['std'] = $meta_box_value; echo '<div class="alt kriesi_meta_box_alt meta_box_'.$option['type'].' meta_box_'.$this->boxinfo['context'].'">'; $this->$option['type']($option); echo '</div>'; } } //隐藏域 echo'<input type="hidden" name="'.$this->boxinfo['id'].'_noncename" id="'.$this->boxinfo['id'].'_noncename" value="'.wp_create_nonce( 'ashumetabox' ).'" />'; } //保存字段数据 function save_postdata() { if( isset( $_POST['post_type'] ) && in_array($_POST['post_type'],$this->boxinfo['page'] ) && (isset($_POST['save']) || isset($_POST['publish']) ) ){ $post_id = $_POST['post_ID']; foreach ($this->options as $option) { if (!wp_verify_nonce($_POST[$this->boxinfo['id'].'_noncename'], 'ashumetabox')) { return $post_id ; } //判断权限 if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id )) return $post_id ; } else { if ( !current_user_can( 'edit_post', $post_id )) return $post_id ; } //将预定义字符转换为html实体 if( $option['type'] == 'tinymce' ){ $data = stripslashes($_POST[$option['id']]); }elseif( $option['type'] == 'checkbox' ){ $data = $_POST[$option['id']]; }else{ $data = htmlspecialchars($_POST[$option['id']], ENT_QUOTES,"UTF-8"); } if(get_post_meta($post_id , $option['id']) == "") add_post_meta($post_id , $option['id'], $data, true); elseif($data != get_post_meta($post_id , $option['id'], true)) update_post_meta($post_id , $option['id'], $data); elseif($data == "") delete_post_meta($post_id , $option['id'], get_post_meta($post_id , $option['id'], true)); } } } //显示标题 function title($values){ echo '<p>'.$values['name'].'</p>'; } //文本框 function text($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><input type="text" size="'.$values['size'].'" value="'.$values['std'].'" id="'.$values['id'].'" name="'.$values['id'].'"/>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //文本域 function textarea($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><textarea class="kriesi_textarea" cols="60" rows="5" id="'.$values['id'].'" name="'.$values['id'].'">'.$values['std'].'</textarea>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //媒体上传 function media($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; //图片上传按钮 global $post_ID, $temp_ID; $uploading_iframe_ID = (int) (0 == $post_ID ? $temp_ID : $post_ID); $media_upload_iframe_src = "media-upload.php?post_id=$uploading_iframe_ID"; $image_upload_iframe_src = apply_filters('image_upload_iframe_src', "$media_upload_iframe_src&type=image"); $button = '<a href="'.$image_upload_iframe_src.'&hijack_target='.$values['id'].'&TB_iframe=true" id="'.$values['id'].'" class="k_hijack button thickbox" onclick="return false;" >上传</a>'; //判断图片格式,图片预览 $image = ''; if($values['std'] != '') { $fileextension = substr($values['std'], strrpos($values['std'], '.') + 1); $extensions = array('png','gif','jpeg','jpg','pdf','tif'); if(in_array($fileextension, $extensions)) { $image = '<img src="'.$values['std'].'" />'; } } echo '<div id="'.$values['id'].'_div" class="kriesi_preview_pic">'.$image .'</div>'; echo '<p>'.$values['name'].'</p><p>'; if($values['desc'] != "") echo '<p>'.$values['desc'].'<br/>'; echo '<input class="kriesi_preview_pic_input" type="text" size="'.$values['size'].'" value="'.$values['std'].'" name="'.$values['id'].'"/>'.$button; echo '</p>'; echo '<br/>'; } //单选框 function radio( $values ){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if($values['std'] == $key) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="radio" class="kcheck" value="'.$key.'" name="'.$values['id'].'"/>'.$value; } } //复选框 function checkbox($values){ echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if( is_array($values['std']) && in_array($key,$values['std'])) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="checkbox" class="kcheck" value="'.$key.'" name="'.$values['id'].'[]"/>'.$value; } echo '<label for="'.$values['id'].'">'.$values['desc'].'</label><br/></p>'; } //下拉框 function dropdown($values){ echo '<p>'.$values['name'].'</p>'; //选择内容可以使页面、分类、菜单、侧边栏和自定义内容 if($values['subtype'] == 'page'){ $select = 'Select page'; $entries = get_pages('title_li=&orderby=name'); }else if($values['subtype'] == 'cat'){ $select = 'Select category'; $entries = get_categories('title_li=&orderby=name&hide_empty=0'); }else if($values['subtype'] == 'menu'){ $select = 'Select Menu in page left'; $entries = get_terms( 'nav_menu', array( 'hide_empty' => false ) ); }else if($values['subtype'] == 'sidebar'){ global $wp_registered_sidebars; $select = 'Select a special sidebar'; $entries = $wp_registered_sidebars; }else{ $select = 'Select...'; $entries = $values['subtype']; } echo '<p><select class="postform" id="'. $values['id'] .'" name="'. $values['id'] .'"> '; echo '<option value="">'.$select .'</option> '; foreach ($entries as $key => $entry){ if($values['subtype'] == 'page'){ $id = $entry->ID; $title = $entry->post_title; }else if($values['subtype'] == 'cat'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'menu'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'sidebar'){ $id = $entry['id']; $title = $entry['name']; }else{ $id = $entry; $title = $key; } if ($values['std'] == $id ){ $selected = "selected='selected'"; }else{ $selected = ""; } echo"<option $selected value='". $id."'>". $title."</option>"; } echo '</select>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //编辑器 function tinymce($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; wp_editor( $values['std'], $values['id'] ); //wp_editor( $values['std'], 'content', array('dfw' => true, 'tabfocus_elements' => 'sample-permalink,post-preview', 'editor_height' => 360) ); //带配置参数 /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式 tinymce=>1,//可视化模式 media_buttons=>0,//取消媒体上传 textarea_rows=>5,//行数设为5 editor_class=>"textareastyle") ); */ } } ?> jQuery.noConflict(); jQuery(document).ready(function(){ hijack_media_uploader(); hijack_preview_pic(); }); function hijack_preview_pic(){ jQuery('.kriesi_preview_pic_input').each(function(){ jQuery(this).bind('change focus blur ktrigger', function(){ $select = '#' + jQuery(this).attr('name') + '_div'; $value = jQuery(this).val(); $image = '<img src ="'+$value+'" />'; var $image = jQuery($select).html('').append($image).find('img'); //set timeout because of safari window.setTimeout(function(){ if(parseInt($image.attr('width')) < 20){ jQuery($select).html(''); } },500); }); }); } function hijack_media_uploader(){ $buttons = jQuery('.k_hijack'); $realmediabuttons = jQuery('.media-buttons a'); window.custom_editor = false; $buttons.click(function(){ window.custom_editor = jQuery(this).attr('id'); }); $realmediabuttons.click(function(){ window.custom_editor = false; }); window.original_send_to_editor = window.send_to_editor; window.send_to_editor = function(html){ if (custom_editor) { $img = jQuery(html).attr('src') || jQuery(html).find('img').attr('src') || jQuery(html).attr('href'); jQuery('input[name='+custom_editor+']').val($img).trigger('ktrigger'); custom_editor = false; window.tb_remove(); }else{ window.original_send_to_editor(html); } }; } <?php //自定义面板类的实例化 /**********title*************/ $options = array(); //page参数为在页面和文章中都添加面板 ，可以添加自定义文章类型 //context参数为面板在后台的位置，比如side则显示在侧栏 $boxinfo = array('title' => 'meta box', 'id'=>'ashubox', 'page'=>array('page','post'), 'context'=>'normal', 'priority'=>'low', 'callback'=>''); $options[] = array( "name" => "标题", "type" => "title"); $options[] = array( "name" => "文本框", "desc" => "", "id" => "ashu_text", "size"=>"40", "std" => "", "type" => "text" ); $options[] = array( "name" => "文本域", "desc" => "", "id" => "ashu_textarea", "std" => "", "type" => "textarea" ); $options[] = array( "name" => "图片上传", "desc" => "", "id" => "ashu_upimg", "std" => "", "button_label"=>'上传图片', "type" => "media" ); $options[] = array( "name" => "单选框", "desc" => "", "id" => "ashu_radio", "std" => 1, "buttons" => array('Yes','No'), "type" => "radio" ); $options[] = array( "name" => "复选框", "desc" => "喜欢吃啥？", "id" => "ashu_checkbox", "buttons" => array('苹果','香蕉','西瓜','芒果'), "type" => "checkbox" ); $options[] = array( "name" => "下拉选择", "desc" => "", "id" => "ashu_dropdown", "subtype"=> array( '1'=>'1', '2'=>'2', '3'=>'3' ), "type" => "dropdown" ); $options[] = array( "name" => "选择分类", "desc" => "", "id" => "ashu_cat", "subtype"=> "cat", "type" => "dropdown" ); $options[] = array( "name" => "选择页面", "desc" => "", "id" => "ashu_page", "subtype"=> "page", "type" => "dropdown" ); $options[] = array( "name" => "选择菜单", "desc" => "", "id" => "ashu_menu", "subtype"=> "menu", "type" => "dropdown" ); $options[] = array( "name" => "选择侧边栏", "desc" => "", "id" => "ashu_sidebar", "subtype"=> "sidebar", "type" => "dropdown" ); $options[] = array( "name" => "编辑器", "desc" => "", "id" => "ashu_tinymce", "std" => "", "type" => "tinymce" ); $new_box = new ashu_meta_box($options, $boxinfo); ?> include_once('metaboxclass.php'); include_once('metabox.php'); $ashu_eitor = get_post_meta($post->ID, "ashu_text", true); //ashu_text为配置文件中文本框的id
则后台文章和页面的编辑页面都会出现配置的自定义面板。
字段调用，比如调用上面配置文件中的文本框字段：
<?php /* wordpress文章自定义字段类文件 Version: 1.0 Author: 树是我的朋友 Author URI: http://www.dba.cn License: /courses/highgrade/298.html */ class ashu_meta_box{ var $options; var $boxinfo; //构造函数 function ashu_meta_box($options,$boxinfo){ $this->options = $options; $this->boxinfo = $boxinfo; add_action('admin_menu', array(&$this, 'init_boxes')); add_action('save_post', array(&$this, 'save_postdata')); } //初始化 function init_boxes(){ $this->add_script_and_styles(); $this->create_meta_box(); } //加载css和js脚本 function add_script_and_styles(){ if(basename( $_SERVER['PHP_SELF']) == "page.php" || basename( $_SERVER['PHP_SELF']) == "page-new.php" || basename( $_SERVER['PHP_SELF']) == "post-new.php" || basename( $_SERVER['PHP_SELF']) == "post.php" || basename( $_SERVER['PHP_SELF']) == "media-upload.php") { //注意加载的脚本的url wp_enqueue_style('metabox_fields_css', TEMJS_URI. 'metabox_fields.css'); wp_enqueue_script('metabox_fields_js',TEMJS_URI. 'metabox_fields.js'); wp_enqueue_style('thickbox'); wp_enqueue_script('media-upload'); wp_enqueue_script('thickbox'); if(isset($_GET['hijack_target'])) { add_action('admin_head', array(&$this,'add_hijack_var')); } } } /*************************/ function add_hijack_var() { echo "<meta name='hijack_target' content='".$_GET['hijack_target']."' />\n"; } //创建自定义面板 function create_meta_box(){ if ( function_exists('add_meta_box') && is_array($this->boxinfo['page']) ) { foreach ($this->boxinfo['page'] as $area) { if ($this->boxinfo['callback'] == '') $this->boxinfo['callback'] = 'new_meta_boxes'; add_meta_box( $this->boxinfo['id'], $this->boxinfo['title'], array(&$this, $this->boxinfo['callback']), $area, $this->boxinfo['context'], $this->boxinfo['priority'] ); } } } //创建自定义面板的显示函数 function new_meta_boxes(){ global $post; //根据类型调用显示函数 foreach ($this->options as $option) { if (method_exists($this, $option['type'])) { $meta_box_value = get_post_meta($post->ID, $option['id'], true); if($meta_box_value != "") $option['std'] = $meta_box_value; echo '<div class="alt kriesi_meta_box_alt meta_box_'.$option['type'].' meta_box_'.$this->boxinfo['context'].'">'; $this->$option['type']($option); echo '</div>'; } } //隐藏域 echo'<input type="hidden" name="'.$this->boxinfo['id'].'_noncename" id="'.$this->boxinfo['id'].'_noncename" value="'.wp_create_nonce( 'ashumetabox' ).'" />'; } //保存字段数据 function save_postdata() { if( isset( $_POST['post_type'] ) && in_array($_POST['post_type'],$this->boxinfo['page'] ) && (isset($_POST['save']) || isset($_POST['publish']) ) ){ $post_id = $_POST['post_ID']; foreach ($this->options as $option) { if (!wp_verify_nonce($_POST[$this->boxinfo['id'].'_noncename'], 'ashumetabox')) { return $post_id ; } //判断权限 if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id )) return $post_id ; } else { if ( !current_user_can( 'edit_post', $post_id )) return $post_id ; } //将预定义字符转换为html实体 if( $option['type'] == 'tinymce' ){ $data = stripslashes($_POST[$option['id']]); }elseif( $option['type'] == 'checkbox' ){ $data = $_POST[$option['id']]; }else{ $data = htmlspecialchars($_POST[$option['id']], ENT_QUOTES,"UTF-8"); } if(get_post_meta($post_id , $option['id']) == "") add_post_meta($post_id , $option['id'], $data, true); elseif($data != get_post_meta($post_id , $option['id'], true)) update_post_meta($post_id , $option['id'], $data); elseif($data == "") delete_post_meta($post_id , $option['id'], get_post_meta($post_id , $option['id'], true)); } } } //显示标题 function title($values){ echo '<p>'.$values['name'].'</p>'; } //文本框 function text($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><input type="text" size="'.$values['size'].'" value="'.$values['std'].'" id="'.$values['id'].'" name="'.$values['id'].'"/>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //文本域 function textarea($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; echo '<p><textarea class="kriesi_textarea" cols="60" rows="5" id="'.$values['id'].'" name="'.$values['id'].'">'.$values['std'].'</textarea>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //媒体上传 function media($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; //图片上传按钮 global $post_ID, $temp_ID; $uploading_iframe_ID = (int) (0 == $post_ID ? $temp_ID : $post_ID); $media_upload_iframe_src = "media-upload.php?post_id=$uploading_iframe_ID"; $image_upload_iframe_src = apply_filters('image_upload_iframe_src', "$media_upload_iframe_src&type=image"); $button = '<a href="'.$image_upload_iframe_src.'&hijack_target='.$values['id'].'&TB_iframe=true" id="'.$values['id'].'" class="k_hijack button thickbox" onclick="return false;" >上传</a>'; //判断图片格式,图片预览 $image = ''; if($values['std'] != '') { $fileextension = substr($values['std'], strrpos($values['std'], '.') + 1); $extensions = array('png','gif','jpeg','jpg','pdf','tif'); if(in_array($fileextension, $extensions)) { $image = '<img src="'.$values['std'].'" />'; } } echo '<div id="'.$values['id'].'_div" class="kriesi_preview_pic">'.$image .'</div>'; echo '<p>'.$values['name'].'</p><p>'; if($values['desc'] != "") echo '<p>'.$values['desc'].'<br/>'; echo '<input class="kriesi_preview_pic_input" type="text" size="'.$values['size'].'" value="'.$values['std'].'" name="'.$values['id'].'"/>'.$button; echo '</p>'; echo '<br/>'; } //单选框 function radio( $values ){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if($values['std'] == $key) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="radio" class="kcheck" value="'.$key.'" name="'.$values['id'].'"/>'.$value; } } //复选框 function checkbox($values){ echo '<p>'.$values['name'].'</p>'; foreach( $values['buttons'] as $key=>$value ) { $checked =""; if( is_array($values['std']) && in_array($key,$values['std'])) { $checked = 'checked = "checked"'; } echo '<input '.$checked.' type="checkbox" class="kcheck" value="'.$key.'" name="'.$values['id'].'[]"/>'.$value; } echo '<label for="'.$values['id'].'">'.$values['desc'].'</label><br/></p>'; } //下拉框 function dropdown($values){ echo '<p>'.$values['name'].'</p>'; //选择内容可以使页面、分类、菜单、侧边栏和自定义内容 if($values['subtype'] == 'page'){ $select = 'Select page'; $entries = get_pages('title_li=&orderby=name'); }else if($values['subtype'] == 'cat'){ $select = 'Select category'; $entries = get_categories('title_li=&orderby=name&hide_empty=0'); }else if($values['subtype'] == 'menu'){ $select = 'Select Menu in page left'; $entries = get_terms( 'nav_menu', array( 'hide_empty' => false ) ); }else if($values['subtype'] == 'sidebar'){ global $wp_registered_sidebars; $select = 'Select a special sidebar'; $entries = $wp_registered_sidebars; }else{ $select = 'Select...'; $entries = $values['subtype']; } echo '<p><select class="postform" id="'. $values['id'] .'" name="'. $values['id'] .'"> '; echo '<option value="">'.$select .'</option> '; foreach ($entries as $key => $entry){ if($values['subtype'] == 'page'){ $id = $entry->ID; $title = $entry->post_title; }else if($values['subtype'] == 'cat'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'menu'){ $id = $entry->term_id; $title = $entry->name; }else if($values['subtype'] == 'sidebar'){ $id = $entry['id']; $title = $entry['name']; }else{ $id = $entry; $title = $key; } if ($values['std'] == $id ){ $selected = "selected='selected'"; }else{ $selected = ""; } echo"<option $selected value='". $id."'>". $title."</option>"; } echo '</select>'; echo $values['desc'].'<br/></p>'; echo '<br/>'; } //编辑器 function tinymce($values){ if(isset($this->database_options[$values['id']])) $values['std'] = $this->database_options[$values['id']]; echo '<p>'.$values['name'].'</p>'; wp_editor( $values['std'], $values['id'] ); //wp_editor( $values['std'], 'content', array('dfw' => true, 'tabfocus_elements' => 'sample-permalink,post-preview', 'editor_height' => 360) ); //带配置参数 /*wp_editor($meta_box['std'],$meta_box['name'].'_value', $settings = array(quicktags=>0,//取消html模式 tinymce=>1,//可视化模式 media_buttons=>0,//取消媒体上传 textarea_rows=>5,//行数设为5 editor_class=>"textareastyle") ); */ } } ?> jQuery.noConflict(); jQuery(document).ready(function(){ hijack_media_uploader(); hijack_preview_pic(); }); function hijack_preview_pic(){ jQuery('.kriesi_preview_pic_input').each(function(){ jQuery(this).bind('change focus blur ktrigger', function(){ $select = '#' + jQuery(this).attr('name') + '_div'; $value = jQuery(this).val(); $image = '<img src ="'+$value+'" />'; var $image = jQuery($select).html('').append($image).find('img'); //set timeout because of safari window.setTimeout(function(){ if(parseInt($image.attr('width')) < 20){ jQuery($select).html(''); } },500); }); }); } function hijack_media_uploader(){ $buttons = jQuery('.k_hijack'); $realmediabuttons = jQuery('.media-buttons a'); window.custom_editor = false; $buttons.click(function(){ window.custom_editor = jQuery(this).attr('id'); }); $realmediabuttons.click(function(){ window.custom_editor = false; }); window.original_send_to_editor = window.send_to_editor; window.send_to_editor = function(html){ if (custom_editor) { $img = jQuery(html).attr('src') || jQuery(html).find('img').attr('src') || jQuery(html).attr('href'); jQuery('input[name='+custom_editor+']').val($img).trigger('ktrigger'); custom_editor = false; window.tb_remove(); }else{ window.original_send_to_editor(html); } }; } <?php //自定义面板类的实例化 /**********title*************/ $options = array(); //page参数为在页面和文章中都添加面板 ，可以添加自定义文章类型 //context参数为面板在后台的位置，比如side则显示在侧栏 $boxinfo = array('title' => 'meta box', 'id'=>'ashubox', 'page'=>array('page','post'), 'context'=>'normal', 'priority'=>'low', 'callback'=>''); $options[] = array( "name" => "标题", "type" => "title"); $options[] = array( "name" => "文本框", "desc" => "", "id" => "ashu_text", "size"=>"40", "std" => "", "type" => "text" ); $options[] = array( "name" => "文本域", "desc" => "", "id" => "ashu_textarea", "std" => "", "type" => "textarea" ); $options[] = array( "name" => "图片上传", "desc" => "", "id" => "ashu_upimg", "std" => "", "button_label"=>'上传图片', "type" => "media" ); $options[] = array( "name" => "单选框", "desc" => "", "id" => "ashu_radio", "std" => 1, "buttons" => array('Yes','No'), "type" => "radio" ); $options[] = array( "name" => "复选框", "desc" => "喜欢吃啥？", "id" => "ashu_checkbox", "buttons" => array('苹果','香蕉','西瓜','芒果'), "type" => "checkbox" ); $options[] = array( "name" => "下拉选择", "desc" => "", "id" => "ashu_dropdown", "subtype"=> array( '1'=>'1', '2'=>'2', '3'=>'3' ), "type" => "dropdown" ); $options[] = array( "name" => "选择分类", "desc" => "", "id" => "ashu_cat", "subtype"=> "cat", "type" => "dropdown" ); $options[] = array( "name" => "选择页面", "desc" => "", "id" => "ashu_page", "subtype"=> "page", "type" => "dropdown" ); $options[] = array( "name" => "选择菜单", "desc" => "", "id" => "ashu_menu", "subtype"=> "menu", "type" => "dropdown" ); $options[] = array( "name" => "选择侧边栏", "desc" => "", "id" => "ashu_sidebar", "subtype"=> "sidebar", "type" => "dropdown" ); $options[] = array( "name" => "编辑器", "desc" => "", "id" => "ashu_tinymce", "std" => "", "type" => "tinymce" ); $new_box = new ashu_meta_box($options, $boxinfo); ?> include_once('metaboxclass.php'); include_once('metabox.php'); $ashu_eitor = get_post_meta($post->ID, "ashu_text", true); //ashu_text为配置文件中文本框的id
有图有真相，李菊福：
