Jquery validation using ajax

I'm using this plugin https://github.com/posabsolute/jQuery-Validation-Engine for form validation. Sometimes I need some validation for email or username to check if it exists or not.
Base on the tutorial in http://www.position-absolute.com/articles/using-form-ajax-validation-with-the-jquery-validation-engine-plugin/

include this script in the language

"ajaxEmailPhp": {
"url": settings.base_url + "home/check_email",
// you may want to pass extra data on the ajax call
//"extraData": "name=eric",
// if you provide an "alertTextOk", it will show as a green prompt when the field validates
"alertTextOk": "* silahkan lanjut",
"alertText": "* Email sudah terpakai",
"alertTextLoad": "* Validasi, Silahkan menunggu"

And this in your custom js

ajaxFormValidation: true,
onAjaxFormComplete: ajaxValidationCallback,
onValidationComplete: ajaxValidationCallback,
onBeforeAjaxFormValidation: beforeCall

function beforeCall(form, options){
if (console) 
console.log("Right before the AJAX form validation call");
return true;

// Called once the server replies to the ajax form validation request
function ajaxValidationCallback(status, form, json, options){
//if (console) 

if (status === true) {
alert("the form is valid!");
// uncomment these lines to submit the form to form.action
// form.validationEngine('detach');
// form.submit();
// or you may use AJAX again to submit the data

in view

in php

public function check_email()
$get = $this->input->get();
if (!empty($get))
$check = $this->student_library->get(array('email' => $get['fieldValue']));
$check = (empty($check)) ? true : false;
echo json_encode(array($get['fieldId'],$check));


Ajax error: 200 parsererror

Fix the output use echo json_encode($array);

How come it doesn't callback and keep on validating

check the output format or check my example

Subscribe to You Live What You Learn

Don’t miss out on the latest issues. Sign up now to get access to the library of members-only issues.
[email protected]