document.write('
Data hosted with ♥ by Pastebin.com - Download Raw - See Original
  1. <?php
  2.    function get_ext($file_name) {
  3.       $extract = explode(".", strtolower($file_name));
  4.       $ext = end($extract);
  5.       return $ext;
  6.    }
  7.  
  8.    $allowed_ext = Array("jpg", "jpeg", "png", "bmp");
  9.    if(isset($_FILES["image"])) {
  10.       $file = $_FILES["image"];
  11.       $ext = get_ext($file["name"]);
  12.       if(in_array($ext, $allowed_ext)) {
  13.          echo "Valid Extension: ".$ext;
  14.          // File uploading code goes here!
  15.       }else {
  16.          echo "Invalid Extension: ".$ext;
  17.       }
  18.    }
  19. ?>
  20. <form action="file_ext.php" method="POST" enctype="multipart/form-data">
  21.    <input type="file" name="image" />
  22.    <input type="submit" value="Upload" />
  23. </form>
');