<?PHP
//remove the utf-8 boms
//by magicbug at gmail dot com
if (isset($_GET['dir'])){ //要去除的文件目录,无参数则为文件当前目录。
$basedir=$_GET['dir'];
}else{
$basedir = '.';
}
$auto = 1;
checkdir($basedir);
function checkdir($basedir){
if ($dh = opendir($basedir)) {
while (($file = readdir($dh)) !== false) {
if ($file != '.' && $file != '..'){
if (!is_dir($basedir."/".$file)) {
echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";
}else{
$dirname = $basedir."/".
$file;
checkdir($dirname);
}
}
}
closedir($dh);
}
function checkBOM ($filename) {
global $auto;
$contents = file_get_contents($filename);
$charset[1] = substr($contents,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) {
$rest = substr($contents,3);
rewrite ($filename,$rest);
return ("<font color=red>BOM found,automatically removed.</font>");
} else {
return ("<font color=red>BOM found.</font>");
}
}
else return ("BOM Not Found.");
}
function rewrite ($filename,$data) {
$filenum = fopen($filename,"w");
flock($filenum,LOCK_EX);
fwrite($filenum,$data);
fclose($filenum);
}
?>