Live notification Ajax not work

Hi,

I need to create ajax notification popup when one query return true. My code from plugin is below:
jQuery

jQuery(document).ready(function(){

 setInterval(function(){
  load_last_notification();
 }, 5000);

 function load_last_notification()
 {
  $.ajax({
   url:"file.php",
   method:"POST",
   dataType: "JSON",
   success:function(data)
   {
       var respose = JSON.parse(data);
       $('.request-notification').html(respose);
   }
  })
 }
});

In my page exist:
<div class="request-notification"></div>

file.php

global $wpdb;

$current_user = get_current_user_id();

$output = '';

$thread_id_request = $wpdb->get_var( $wpdb->prepare( "
        SELECT <code>thread_id</code>
        FROM <code>{$wpdb->base_prefix}table</code> 
        WHERE <code>user_id</code> = %d
        AND <code>accept_status</code> = 0 
    ", $current_user ) );

if($thread_id_request){
    $output .= '<div>Test from the other side</div>';
}

json_encode($output);

What is wrong? or How I can create live notification for user when query return true?

Thanks for support and time!

• This topic was modified 5 years, 11 months ago by pavelmititel.

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