createAction 不会使用 jtable 在数据库 PHP 中插入数据

我正在使用jtable来帮助用户管理联系表单，但是我无法使用它使用CreateAction将数据插入mysql表中.php首页代码是 FOLOWING：

<script type="text/javascript">
            $(document).ready(function () {
                $('#PersonTableContainer').jtable({
                    title: 'Contact list',
                    actions: {
                        listAction: '/Pipit/assets/php/list.php',
                        createAction: '/Pipit/assets/php/createAction.php',
                        updateAction: '/Pipit/assets/php/edit.php',
                        deleteAction: '/Pipit/assets/php/delete.php'
                    },
                    fields: {
                        personID: {
                            key: true,
                            list: false
                        },
                        name: {
                            title: 'name',
                        },
                        group: {
                            title: 'group',
                        },
                        phone: {
                            title: 'number',
                        }
                    }
                });

创建操作.php文件如下：

    //Insert record into database
$insert=mysql_query("INSERT INTO pipit_contacts (name, group, phone) VALUES('" . $_POST["name"] . "', '" . $_POST["group"] . "', ".$_POST['phone']."");
//Get last inserted record (to return to jTable)
$result = mysql_query("SELECT * FROM pipit_contacts ORDER BY  personID DESC ");
$row = mysql_fetch_array($result);
//Return result to jTable
$jTableResult = array();
$jTableResult['Result'] = "OK";
$jTableResult['Record'] = $row;
print json_encode($jTableResult);