如下代码为PHP方式去除当前目录及子目录所有文件BOM信息的代码,新建文件,将其放倒根目录下,然后浏览器访问即可。
$auto = 1;
checkdir($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, 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) {
$rest = substr($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);
}
?>
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