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PHP file type detection: function to determine file type based on binary file header

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Release： 2016-07-25 08:51:34
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  2. $files = array('./test.jpg', 'test.png');
  3. $fileTypes = array(
  4. 7790 => 'exe',
  5. 7784 => 'midi',
  6. 8075 => 'zip',
  7. 8297 => 'rar',
  8. 225216 => 'jpg',
  9. 7173 => 'gif',
  10. 6677 => 'bmp',
  11. 13780 => 'png',
  12. );
  13. foreach($files as $file) {
  14. $fp = fopen($file, 'rb');
  15. $bin = fread($fp, 2); // 只读头两个字节
  16. fclose($fp);
  17. $strInfo = @unpack("C2chars", $bin);
  18. $typeCode = intval($strInfo['chars1'].$strInfo['chars2']);
  19. $fileType = isset($fileTypes[$typeCode]) ? $fileTypes[$typeCode] : 'unknown';
  20. echo $file , ' type : ', $fileType, ' code : ', $fileType, '
    ';
  21. }
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Related labels：
php文件类型检测:根据二进制文件头判断文件类型的函数
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