libraries/mime.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * MIME detection code.
   5  *
   6  * @package phpMyAdmin
   7  * @todo Maybe we could try to use fileinfo module if loaded
   8  */
   9
  10 /**
  11  * Tries to detect MIME type of content.
  12  */
  13 function PMA_detectMIME(&$test) {
  14     $len = strlen($test);
  15     if ($len >= 2 && $test[0] == chr(0xff) && $test[1] == chr(0xd8)) {
  16         return 'image/jpeg';
  17     }
  18     if ($len >= 3 && substr($test, 0, 3) == 'GIF') {
  19         return 'image/gif';
  20     }
  21     if ($len >= 4 && substr($test, 0, 4) == "\x89PNG") {
  22         return 'image/png';
  23     }
  24     return 'application/octet-stream';
  25 }
  26 ?>