$(document).ready(function (e) {         $('#upload_certificates').on('click', function () {             var form_data = new FormData();             var ins = document.getElementById('certificates').files.length;             for (var x = 0; x < ins; x++) {                 form_data.append("files[]", document.getElementById('certificates').files[x]);             }             if($('#company_name').val() !== '') {                 $.ajax({                     url: '/ajaxfile.php',                     dataType: 'text',                     cache: false,                     contentType: false,                     processData: false,                     async: true,                     data: form_data,                     type: 'post',                     success: function (response) {                         alert(response)                     }                 });             }         });     });