wordpress 为主题添加AJAX提交评论功能的php代码

首先需要在主题的function.PHP文件里添加一段函数： <div class="msgborder" id="PHPcode3"> < ?php function fail($s) { header('HTTP/1.0 500 Internal Server Error'); echo $s; exit; } function ajax_comment(){ if($_POST['action'] == 'ajax_comment') { global $wpdb,$db_check; // Check DB if(!$wpdb->dbh) { echo('Our database has issues. Try again later.'); die(); } nocache_headers(); $comment_post_ID = (int) $_POST['comment_post_ID']; $status = $wpdb->get_row("SELECT post_status,comment_status FROM $wpdb->posts WHERE ID = '$comment_post_ID'"); if ( empty($status->comment_status) ) { do_action('comment_id_not_found',$comment_post_ID); fail('The post you are trying to comment on does not currently exist in the database.'); } elseif ( 'closed' == $status->comment_status ) { do_action('comment_closed',$comment_post_ID); fail('Sorry,comments are closed for this item.'); } elseif ( in_array($status->post_status,array('draft','pending') ) ) { do_action('comment_on_draft',$comment_post_ID); fail('The post you are trying to comment on has not been published.'); } $comment_author = trim(strip_tags($_POST['author'])); $comment_author_email = trim($_POST['email']); $comment_author_url = trim($_POST['url']); $comment_content = trim($_POST['comment']); // If the user is logged in $user = wp_get_current_user(); if ( $user->ID ) { $comment_author = $wpdb->escape($user->display_name); $comment_author_email = $wpdb->escape($user->user_email); $comment_author_url = $wpdb->escape($user->user_url); if ( current_user_can('unfiltered_html') ) { if ( wp_createnonce('unfiltered-html-comment' . $comment_post_ID) != $_POST['_wp_unfiltered_html_comment'] ) { kses_remove_filters(); // start with a clean slate kses_init_filters(); // set up the filters } } } else { if ( get_option('comment_registration') ) fail('Sorry,you must be logged in to post a comment.'); } $comment_type = ''; if ( get_option('require_name_email') && !$user->ID ) { if ( 6> strlen($comment_author_email) || '' == $comment_author ) fail('Sorry: please fill the required fields (name,email).'); elseif ( !is_email($comment_author_email)) fail('Sorry: please enter a valid email address.'); } if ( '' == $comment_content ) fail('Sorry: please type a comment.'); // Simple duplicate check $dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND ( comment_author = '$comment_author' "; if ( $comment_author_email ) $dupe .= "OR comment_author_email = '$comment_author_email' "; $dupe .= ") AND comment_content = '$comment_content' LIMIT 1"; if ( $wpdb->get_var($dupe) ) { fail('Duplicate comment detected; it looks as though you\'ve already said that!'); } $commentdata = compact('comment_post_ID','comment_author','comment_author_email','comment_author_url','comment_content','comment_type','user_ID'); if( !$user->ID ){ $result_set = $wpdb->get_results("SELECT display_name,user_email FROM $wpdb->users WHERE display_name = '" . $comment_author . "' OR user_email = '" . $comment_author_email . "'"); if ($result_set) { if ($result_set[0]->display_name == $comment_author){ fail( ('Error: you are not allowed to use the nickname that you entered.if you are the administrator you hava to login to comment.','philna2') ); } else { fail( ('Error: you are not allowed to use the email that you entered.if you are the administrator you hava to login to comment.','philna2') ); } } } $comment_id = wp_new_comment( $commentdata ); $comment = get_comment($comment_id); if( !$user->ID ){ setcookie('commentauthor' . COOKIEHASH,$comment->comment_author,time() + 30000000,COOKIEPATH,COOKIE_DOMAIN); setcookie('comment_authoremail' . COOKIEHASH,$comment->comment_author_email,COOKIE_DOMAIN); setcookie('comment_authorurl' . COOKIEHASH,clean_url($comment->comment_author_url),COOKIE_DOMAIN); } @header('Content-type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset')); ?> //这里需要粘贴你的评论框架代码，不过相关的调用代码有所变化： //评论ID：$comment->comment_ID //评论者名字：$comment->comment_author //判断评论者是否填写了网站地址：$comment->get_comment_author_url //评论者URL：$comment->comment_author_url //评论时间：MysqL2date(__('F jS,Y'),$comment->comment_date) //评论者e-mail：$comment->comment_author_email //评论内容$comment->comment_content < ?php die(); } } add_action('init','ajax_comment'); //添加AJAX评论钩子 ?>