我已经为我的页面侧边栏创建了一个自定义表单，但表单输入没有保存到may wordpress数据库。谁能帮我一下吗。请参阅下面我的代码。

<?php

if ( isset( $_POST[\'submit\'] ) ){

    global $wpdb;
   $lplifeinsurance_leads=$wpdb->prefix.\'lplifeinsurance\';

    $data=array(
        \'quotes\' => $_POST[\'quotes\'], 
        \'cover\' => $_POST[\'cover\'],
        \'health\' => $_POST[\'health\'], 
        \'provider\' => $_POST[\'provider\'],
        \'birthdate\' => $_POST[\'birthdate\'],
        \'gender\' => $_POST[\'gender\'], 
        \'lname\' => $_POST[\'lname\'], 
        \'address\' => $_POST[\'address\'],
        \'number\' => $_POST[\'number\'], 
        \'email\' => $_POST[\'email\'] );


     $wpdb->insert( $lplifeinsurance_leads, $data);
}

?>