PHP delete utf-8 BOM example code_PHP tutorial

In the earlier PHP tutorial, we mentioned the example of using PHP to determine whether the file is UTF-8 encoded (and check the BOM). Today we will implement PHP to delete the utf-8 BOM, without further ado. Directly upload the code:

Copy to ClipboardQuoted content: [www.bkjia.com] //Find utf-8 BOM issues
if(isset($_GET['dir'])){
$basedir=$_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("");
} else {
return(" does not exist");
}
}
else return("does not exist");
}

function rewrite($filename, $data) {
$filenum = fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}
?>

http://www.bkjia.com/PHPjc/364742.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/364742.htmlTechArticleIn the earlier PHP tutorial, we mentioned about using PHP to determine whether the file is UTF-8 encoded (and check Bom) example, today we will implement PHP to delete the utf-8 BOM, without further ado...