自定义元框保存值问题-不推荐:函数ereg(）等

我是一名WP主题开发人员，在保存自定义元框值时遇到问题。

我找到了一些教程，里面解释了如何做到这一点。

我在functions.php中包含了一个名为customizedmeta-boxes-save.php的文件，代码如下：

<?php 
function save_postdata( $post_id ) {
    global $post, $new_meta_boxes, $page_settings, $blogroll, $post_settings, $team_info, $slide_info, $meta_box_groups;

    if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) {
        return $post_id;
    }
    if( defined('DOING_AJAX') && DOING_AJAX ) { //Prevents the metaboxes from being overwritten while quick editing.
        return $post_id;
    }
    if( ereg('/'edit'.php', $_SERVER['REQUEST_URI']) ) { //Detects if the save action is coming from a quick edit/batch edit.
        return $post_id;
    }
    foreach($meta_box_groups as $group) {
        foreach($group as $meta_box) {
            if(isset($_POST[$meta_box['name'].'_noncename'])){
                if ( !wp_verify_nonce( $_POST[$meta_box['name'].'_noncename'], $meta_box['name'].'-meta' )) {
                    error_log(print_r($meta_box, TRUE).'{err_end}');
                    return $post_id;
                }
            }
            if ( isset($_POST['post_type']) && '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 $post_id;
            }
            if(isset($_POST[$meta_box['name'].'_value'])){
                $data = $_POST[$meta_box['name'].'_value'];
            }
            if(get_post_meta($post_id, $meta_box['name'].'_value') == "") 
                add_post_meta($post_id, $meta_box['name'].'_value', $data, true);
            elseif($data != get_post_meta($post_id, $meta_box['name'].'_value', true))
                update_post_meta($post_id, $meta_box['name'].'_value', $data);
            elseif($data == "" || $data == $meta_box['std'] )
                delete_post_meta($post_id, $meta_box['name'].'_value', get_post_meta($post_id, $meta_box['name'].'_value', true));
        } // end foreach
    } // end foreach
} // end save_postdata
add_action('save_post', 'save_postdata');
?>

在点击发布帖子和页面后，当我的wp_debug打开时，我会收到一些错误：

Deprecated: Function ereg() is deprecated in /home/creat/domains/tester.net/public_html/re/wp-content/themes/rev2/includes/custom-meta-boxes-save.php on line 14
Notice: Undefined variable: data in /home/creat/domains/tester.net/public_html/re/wp-content/themes/rev2/includes/custom-meta-boxes-save.php on line 41
Notice: Undefined variable: data in /home/creat/domains/tester.net/public_html/re/wp-content/themes/rev2/includes/custom-meta-boxes-save.php on line 43
Warning: Cannot modify header information - headers already sent by (output started at /home/creat/domains/tester.net/public_html/re/wp-content/themes/rev2/includes/custom-meta-boxes-save.php:41) in /home/creative/domains/ctproject.net/public_html/sa2/wp-admin/post.php on line 233
Warning: Cannot modify header information - headers already sent by (output started at /home/creat/domains/tester.net/public_html/re/wp-content/themes/rev2/includes/custom-meta-boxes-save.php:41) in /home/creative/domains/ctproject.net/public_html/sa2/wp-includes/pluggable.php on line 1178

我的最后期限很近，急需帮助。

谢谢！