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需求：
<?php/**在function中添加以下代码* WordPress 添加额外选项字段到常规设置页面* http://www.wpdaxue.com/add-field-to-general-settings-page.html*/$new_general_setting = new new_general_setting();class new_general_setting {function new_general_setting( ) {add_filter( ‘admin_init‘ , array( &$this , ‘register_logo‘ ) );}function register_logo(){//需要‘js/uploader.js组件wp_enqueue_script( ‘fli-upload-js‘, $this->url . ‘js/uploader.js‘, array( ‘jquery‘, ‘media-upload‘, ‘thickbox‘ ) );wp_enqueue_style( ‘thickbox‘ );wp_enqueue_style( ‘fli-upload-css‘, $this->url . ‘css/uploader.css‘ );register_setting( ‘general‘, ‘logo‘, ‘esc_attr‘ );add_settings_field(‘logo‘, ‘<label for="logo">‘.__(‘网站Logo‘ ).‘</label>‘ , array(&$this, ‘logo_fields_html‘) , ‘general‘ );}function logo_fields_html() {$value = get_option( ‘logo‘, ‘‘ );echo ‘<input type="text" class="regular-text ltr" id="logo" name="logo" maxlength="200" value="‘. $value .‘" readonly/> <input type="button" id="general_logo" class="button insert-media add_media" value="上传">‘;}}// 自定义后台Css和Jsadd_action( ‘admin_enqueue_scripts‘, ‘myAdminScripts‘ );function myAdminScripts() {//主题下加载admin.jswp_register_script( ‘default‘, get_template_directory_uri() . ‘/admin.js‘, array(), ‘‘, ‘all‘ );wp_enqueue_script( ‘default‘ );wp_register_style( ‘default‘, get_template_directory_uri() . ‘/admin.css‘, array(), ‘‘, ‘all‘ );wp_enqueue_style( ‘default‘ );}?>
options_general();//在常规选项页面添加自定义信息function options_general () {if(!Islocatl_pathname(‘options-general.php‘))return;- //点击上传按钮或input元素时打开上传窗口
jQuery(‘#general_logo,#logo‘).click(function() {//打开上传窗口需要js/uploader.js组件tb_show(‘‘, ‘media-upload.php?type=image&TB_iframe=true‘);return false;});//图片上传页面回传//html:为选择的图片元素window.send_to_editor = function(html) {imgurl = jQuery(html).attr(‘src‘);// 保存值并写入optuions表jQuery(‘#logo‘).val(imgurl);//删除图片上传窗口tb_remove();return false;} //end send_to_editor}//当前页面是否是指定的页面function Islocatl_pathname (pathname) {return location.pathname.indexOf(pathname)>=0;}//end 当前页面是否是指定的页面
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原文地址：http://www.cnblogs.com/huangtailang/p/4265999.html
