How to pass file from JavaScript to PHP? [duplicate]

Answer 1

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);