Internal server error 500(codeigniter, ajax) - php

Question

I want to check if the user email already exists in the database. For which I have build the following code.
AJAX code:
function emailCheck(){
console.log("hello");
var email = $("#email").val();;
jQuery.ajax({
type: 'POST',
url: '<?php echo base_url(); ?>myCon/customerCheck',
data: {email:email},
success:function(response){
$('#test').html(response);
}
});
}
myCon controller's function:
public function customerCheck(){
$this->load->model('CustomerModel');
$res = $this->customerModel->customerMailCheck();
echo json_encode($res);
}
customerModel model's function:
function customerMailCheck(){
$mail = $this->input->post('email');
$result = $this->db->get_where('privilege_customer', array('email' => $mail);
return $result->result();
}
Now whenever I call that function am getting error stating that internal server error 500.
Is there any better way to do this?

Answer 1

You can try this solution for your problem.
Please add below code in your header of page
<script type="text/javascript">
base_url = '<?=base_url()?>';
</script>
Changes your controller function.
public function customerCheck(){
if ($this->input->is_ajax_request()) {
$this->load->model('CustomerModel');
$mail = $this->input->post('email');
$res = $this->customerModel->customerMailCheck($mail);
if(!empty($res)) {
$data['status'] = 'success';
$data['message'] = 'Email Adress is found';
} else {
$data['status'] = 'error';
$data['message'] = 'Data not found';
}
echo json_encode($data);
exit;
} else{
redirect('login/logout');
}
}
Change Ajax Code
function emailCheck(){
var email = $("#email").val();;
jQuery.ajax({
type: 'POST',
url : base_url +'myCon/customerCheck',
data: {email:email},
success:function(response){
if(response.status=="success"){
$('#test').html(response.message);
} else {
console.log(response.message)
}
}
});
}
CustomerModel model's function:
function customerMailCheck($mail){
$result = $this->db->get_where('privilege_customer', array('email' => $mail));
return $result->result();
}
I hope this will helps you.

Answer 2

One bracket ) is missing in your model function:
Try this:
function customerMailCheck(){
$mail = $this->input->post('email');
$result = $this->db->get_where('privilege_customer', array('email' => $mail));
return $result->result();
}

Answer 3

You must receive ajax request in controller and pass it to model
myCon controller
public function customerCheck(){
$this->load->model('CustomerModel');
-----> $mail = $this->input->post('email'); ------v
$res = $this->customerModel->customerMailCheck($mail);
echo json_encode($res);
}
Model :
function customerMailCheck($mail){
$result = $this->db->get_where('privilege_customer', array('email' => $mail);
return $result->result();
}

Answer 4

Try This
Script : Here you missed Bouble Qutes
function emailCheck(){
console.log("hello");
var email = $("#email").val();;
jQuery.ajax({
type: 'POST',
url: '<?=site_url()?>myCon/customerCheck',
data: {"email":email},
success:function(response){
$('#test').html(response);
}
});
}
Model : Here you missed ) in $result= line
function customerMailCheck() {
$mail = $this->input->post('email');
$result = $this->db->get_where('privilege_customer', array('email' => $mail));
return $result->result();
}