PHP Remove UTF8 BOM

fixBom.php

<?php
/**
php fixBom.php /path/your/www 1
*/
$basedir = $argv[1];
 
$auto = !empty($argv[2]);
checkdir($basedir);
 
function checkdir($basedir)
{
  if ($dh = opendir($basedir)) {
    while (($file = readdir($dh)) !== false) {
      if ($file != '.' && $file != '..') {
        if (!is_dir($basedir . "/" . $file) && stripos($file,'.php')) {
          echo "filename: $basedir/$file " . checkBOM("$basedir/$file") . " \n";
        } else {
          $dirname = $basedir . "/" . $file;
          checkdir($dirname);
        }
      }
    }
    closedir($dh);
  }
}
function checkBOM($filename)
{
  global $auto;
  $contents  = file_get_contents($filename);
  $charset[1] = substr($contents, 0, 1);
  $charset[2] = substr($contents, 1, 1);
  $charset[3] = substr($contents, 2, 1);
  if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
    if ($auto == 1) {
      file_put_contents($filename, substr($contents, 3));
      return ("BOM found, automatically removed.\n");
    } else {
      return ("BOM found.\n");
    }
  } else
    return ("BOM Not Found.\n");
}