How to pass file from JavaScript to PHP?

Question

Is it possible to pass file from JavaScript to PHP? (Best using ajax).If we have following code:

<!DOCTYPE html>
 <html>

  <body>

   <input type='file' id='upld' onChange=' f=this.files[0] '> 
   <input type='button' onClick='ajax_pass()'>

     <script>

      function ajax_pass()
      {

       console.log(f);

        //Send 'f' using ajax to php imaginary file...
      }

     </script>

  </body>

 </html>

I'm new to JS programming and can't imagine how POST or GET can contain whole image.Can you clarify it to me please?

this does the job : https://mobiarch.wordpress.com/2013/01/02/uploading-file-using-xmlhttprequest-level-2/ — Ramanlfc, Nov 28 '15 at 12:31

score 7 · Answer 1 · answered Nov 28 '15 at 12:22

HTML Code

<input id="myfile" type="file" name="myfile" />
<button id="upload" value="Upload" />

Jquery Code

$(document).on("click", "#upload", function() {
    var file_data = $("#myfile").prop("files")[0];   // Getting the properties of file from file field
    var form_data = new FormData();                  // Creating object of FormData class
    form_data.append("file", file_data)              // Appending parameter named file with properties of file_field to form_data
    form_data.append("user_id", 123)                 // Adding extra parameters to form_data
    $.ajax({
                url: "/upload_file.php",
                dataType: 'script',
                cache: false,
                contentType: false,
                processData: false,
                data: form_data,                         // Setting the data attribute of ajax with file_data
                type: 'post'
       });
});

Php Code

print_r($_FILES);
print_r($_POST);

How to pass file from JavaScript to PHP?

1 Answers1

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