Codeigniter 3 Csrf Ajax Code Example


Example 1: codeigniter csrf token ajax

$csrfName = $this->security->get_csrf_token_name();  $csrfHash = $this->security->get_csrf_hash();

Example 2: csrf in codeigniter 3

<!doctype html> <html> <head>    <title>How to Send AJAX request with CSRF token in CodeIgniter</title> </head> <body>      <!-- CSRF token (Here, name is 'csrf_hash_name' which is specified in $config['csrf_token_name'] in cofig.php file ) -->      <input type="text" class="txt_csrfname" name="<?= $this->security->get_csrf_token_name(); ?>" value="<?= $this->security->get_csrf_hash(); ?>"><br>         Select Username : <select id='sel_user'>       <option value='yssyogesh'>yssyogesh</option>       <option value='sonarika'>sonarika</option>       <option value='vishal'>vishal</option>       <option value='sunil'>sunil</option>     </select>      <!-- User details -->     <div >        Username : <span id='suname'></span><br/>        Name : <span id='sname'></span><br/>        Email : <span id='semail'></span><br/>     </div>      <!-- Script -->     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>     <script type='text/javascript'>     // baseURL variable     var baseURL= "<?= base_url();?>";      $(document).ready(function(){         $('#sel_user').change(function(){           // CSRF Hash           var csrfName = $('.txt_csrfname').attr('name'); // Value specified in $config['csrf_token_name']           var csrfHash = $('.txt_csrfname').val(); // CSRF hash                      // Username           var username = $(this).val();            // AJAX request           $.ajax({             url:'<?=base_url()?>index.php/User/userDetails',             method: 'post',             data: {username: username,[csrfName]: csrfHash },             dataType: 'json',             success: function(response){                // Update CSRF hash               $('.txt_csrfname').val(response.token);                // Empty the elements               $('#suname,#sname,#semail').text('');                 // Loop on response               $(response[0]).each(function(key,value){                   var uname = value.username;                  var name = value.name;                  var email = value.email;                   $('#suname').text(uname);                  $('#sname').text(name);                  $('#semail').text(email);               });              }          });        });     });     </script> </body> </html>

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