我希望使用WordPress API检查密码的强度。我似乎找不到允许我这样做的函数。代码为

<?php
    add_action( \'custom_api_init\', function () {
        // Check Password Strength
        register_rest_route( 
            \'custom/v2\', 
            \'/strength/\', 
            array( 
                \'methods\' => \'POST\', 
                \'callback\' => \'custom_api_strength\'
            ) 
        );
    }

    function custom_api_strength($data){
        if(
            isset(
                $data[\'password\'],
                $data[\'username\'],
                $data[\'email\'],
                $data[\'fname\'],
                $data[\'lname\']
            )
        ){

            // Check Password Strength


            return array(\'result\'=>$strength);
        }else{ return array( \'result\'=>\'0\'); }
    }
?>