How to send a string along with file via ajax request to a php file?

Question

I got a php file that saves file to server to a folder called upload it receives file via an ajax request every thing works fine so far the next requirement is to send a string along with the file to specify an upload folder & sub folder like "Course/Math" how to achieve that?

JS

$( document ).ready(function() {
$('#Upload').click(function(){
    var formData = new FormData($('form')[0]);
    $.ajax({
        url: 'uploadFile.php',  
        type: 'POST',
        xhr: function() {  
            var myXhr = $.ajaxSettings.xhr();
            if(myXhr.upload){ 
                myXhr.upload.addEventListener('progress',progressHandling, false);
            }
            return myXhr;
        },
        success: completeHandler,
        data: formData,
        cache: false,
        contentType: false,
        processData: false
    });
});

var progressHandling = function(e){
    if(e.lengthComputable){
        var percent = Math.round((e.loaded / e.total) * 100);
        $('#uploadprogress').css('width', percent+'%');
    }
}

var completeHandler = function(data){
    $('#message').text(data);
    $('#uploadprogress').css('width', '0%');
    $('#file').val('');
};
});

PHP

<?php
if ($_FILES["file"]["error"] > 0) {

} else {
  move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
  echo true;
}
?>

score 3 · Answer 1 · edited May 23 '17 at 12:02

Sample Example of Sending form data in ajax call with .serialize()

var formData = $('#myform').serialize;
    $.ajax({
        url: 'uploadFile.php',  
        type: 'POST',
        xhr: function() {  
            var myXhr = $.ajaxSettings.xhr();
            if(myXhr.upload){ 
                myXhr.upload.addEventListener('progress',progressHandling, false);
            }
            return myXhr;
        },
        success: completeHandler,
        data: formData,
        cache: false,
        contentType: false,
        processData: false
    });

If you want to add a string simply use like following:

var value = 'test';
var formData = $('#myform').serialize+"&newstring="+value;

Update

File upload is ~~not~~ possible through ajax. You can upload file, without refreshing page by using IFrame or AjaxFileUpload Plugin.

Further Details here is Answer.

Also file some detail explanation here also:

How do i receive that in php? $_FILES[] won't work here right? — Ibrahim Amin, May 08 '14 at 12:37

score 0 · Answer 2 · answered Apr 04 '17 at 09:33

You could use the HTML5 Upload element.

$("#FileUpload").change(function (e) {
 var uploadFile = e.target.files;
 if (uploadFile.length > 0) {
      if (window.FormData !== undefined) {
           var data = new FormData();
           for (var x = 0; x < uploadFile.length; x++) {
                data.append("file" + x, uploadFile[x]);
           }
           data.append("ELEMENTCLASSNAME", $("#ELEMENTID").val());
           $.ajax({
                type: "POST",
                url: 'URL',
                contentType: false,
                processData: false,
                data: data,
                success: function (result) {
                     alert(result);
                },
                failure: function (result) {
                     alert(result);
                },
                error: function (xhr, status, p3, p4) {
                     var err = "Error " + " " + status + " " + p3 + " " + p4;
                     if (xhr.responseText && xhr.responseText[0] == "{")
                          err = JSON.parse(xhr.responseText).Message;
                     console.log(err);
                }
           });
      } else {
           alert("This browser doesn't support HTML5 file uploads!");
      }
 }});

On the server side use the Request Object get the value:

              var versionName = Request["ELEMENTCLASSNAME"];

How to send a string along with file via ajax request to a php file?

2 Answers2

Update