直接上代码

  1. <?php   
  2. if (isset($_GET['dir'])){ 
  3. $basedir=$_GET['dir'];   
  4. }else{   
  5. $basedir = '.';   
  6. }   
  7. $auto = 1;   
  8. checkdir($basedir);   
  9. function checkdir($basedir){   
  10. if ($dh = opendir($basedir)) {   
  11.   while (($file = readdir($dh)) !== false) {   
  12.    if ($file != '.' && $file != '..'){   
  13.     if (!is_dir($basedir."/".$file)) {   
  14.      echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";   
  15.     }else{   
  16.      $dirname = $basedir."/".$file;   
  17.      checkdir($dirname);   
  18.     }   
  19.    }   
  20.   }   
  21. closedir($dh);   
  22. }   
  23. }   
  24. function checkBOM ($filename) {   
  25. global $auto;   
  26. $contents = file_get_contents($filename);   
  27. $charset[1] = substr($contents, 0, 1);   
  28. $charset[2] = substr($contents, 1, 1);   
  29. $charset[3] = substr($contents, 2, 1);   
  30. if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {   
  31.   if ($auto == 1) {   
  32.    $rest = substr($contents, 3);   
  33.    rewrite ($filename, $rest);   
  34.    return ("<font color=red>BOM found, automatically removed");   
  35.   } else {   
  36.    return ("<font color=red>BOM found.</font>");   
  37.   }   
  38. }   
  39. else return ("BOM Not Found.");   
  40. }   
  41. function rewrite ($filename, $data) {   
  42. $filenum = fopen($filename, "w");   
  43. flock($filenum, LOCK_EX);   
  44. fwrite($filenum, $data);   
  45. fclose($filenum);   
  46. }   
  47. ?>

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