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PHP remove BOM document

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Release： 2016-07-25 08:43:41
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  2. //remove the utf-8 boms
  3. //by magicbug at gmail dot com
  5. if (isset($_GET['dir'])){ //要去除的文件目录，无参数则为文件当前目录。
  6. $basedir=$_GET['dir'];
  7. }else{
  8. $basedir = '.';
  9. }
  11. $auto = 1;
  13. checkdir($basedir);
  15. function checkdir($basedir){
  16. if ($dh = opendir($basedir)) {
  17. while (($file = readdir($dh)) !== false) {
  18. if ($file != '.' && $file != '..'){
  19. if (!is_dir($basedir."/".$file)) {
  20. echo "filename: $basedir/$file ".checkBOM("$basedir/$file")."
    ";
  21. }else{
  22. $dirname = $basedir."/".
  23. $file;
  24. checkdir($dirname);
  25. }
  26. }
  27. }
  28. closedir($dh);
  29. }
  31. function checkBOM ($filename) {
  32. global $auto;
  33. $contents = file_get_contents($filename);
  34. $charset[1] = substr($contents, 0, 1);
  35. $charset[2] = substr($contents, 1, 1);
  36. $charset[3] = substr($contents, 2, 1);
  37. if (ord($charset[1]) == 239 && ord($charset[2]) == 187 &&
  38. ord($charset[3]) == 191) {
  39. if ($auto == 1) {
  40. $rest = substr($contents, 3);
  41. rewrite ($filename, $rest);
  42. return ("BOM found,automatically removed.");
  43. } else {
  44. return ("BOM found.");
  45. }
  46. }
  47. else return ("BOM Not Found.");
  48. }
  50. function rewrite ($filename, $data) {
  51. $filenum = fopen($filename, "w");
  52. flock($filenum, LOCK_EX);
  53. fwrite($filenum, $data);
  54. fclose($filenum);
  55. }
  56. ?>
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PHP, BOM


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