WordPress实现评论后可显示内容中附件下载地址的方法

function reply_to_read($atts, $content=null) {
extract(shortcode_atts(array("notice" => '温馨提示: 此处内容需要评论本文后才能查看.'), $atts));
$email = null;
$user_ID = (int) wp_get_current_user()->ID;
if ($user_ID > 0) {
$email = get_userdata($user_ID)->user_email;
//对博主直接显示内容
$admin_email = "xxx@aaa.com"; //博主Email
if ($email == $admin_email) {
return $content;
}
} else if (isset($_COOKIE['comment_author_email_' . COOKIEHASH])) {
$email = str_replace('%40', '@', $_COOKIE['comment_author_email_' . COOKIEHASH]);
} else {
return $notice;
}
if (empty($email)) {
return $notice;
}
global $wpdb;
$post_id = get_the_ID();
$query = "SELECT `comment_ID` FROM {$wpdb->comments} WHERE `comment_post_ID`={$post_id} and `comment_approved`='1' and `comment_author_email`='{$email}' LIMIT 1";
if ($wpdb->get_results($query)) {
return do_shortcode($content);
} else {
return $notice;
}
}
add_shortcode('reply', 'reply_to_read');