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【PHP】去掉Bom标记

作者: / 发布于2017/12/19/ 1126

<?php
//remove the utf-8 boms
//by magicbug at gmail dot com

if (isset($_GET['dir'])){ //config the basedir
$basedir=$_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")." ";
}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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