php - how to upload file in the server using move_uploaded_file -

hi having hard time using move_uploaded_file function pass file new location. using ajax pass function process.php. hope can me.

here process.php

    $target_dir = "../files-here/";      $filename = $_post['filename'];       $path_url = $target_dir .$filename;        if (file_exists($path_url)) {              echo "sorry, file exists.";              $uploadok = 0;          }          else          {              if(move_uploaded_file($filename, $path_url))              echo "the file".$filename."has been uploaded";

here form ajax.

echo "<form method='post' enctype='multipart/form-data' id='test_ajax'>";        echo "<input name='uploadedfile' type='file' id='custom-file-input' class='test-only' /><br/>";      echo "</form>";      echo '<button value="upload" id="custom-submit-input">upload</button>';         <script>  jquery('#custom-submit-input').click(function(){              var filename = jquery('input[type=file]').val().replace(/.*(\/|\\)/, '');               jquery.post("file-here/process.php", {                                     filename: filename                }, function(data) {                  console.log(data);                                });       </script>

i'm not sure work expect. form never gets 'submitted', file doesn't uploaded , not processing uploaded file. might manage post filename of file, thats all.

you need to:

1. submit form in usual way (using html)
2. process uploaded file (using php)
3. move uploaded file (using php)

your uploaded file exist in 'temporary' directory 'temporary' filename once uploaded, , need data $_files array. can use move_uploaded_file move temporary file final destination.

i'm not sure can 'ajax' of process.