检查php文件中是否含有bom的函数代码需要的朋友可以参考下
/*检测并清除BOM*/
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 ! . ..){
if(!is_dir($basedir."/".$file)){
echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." ";
}else{
$dirname $basedir."/".$file;
checkdir($dirname);
}
}
}//end while
closedir($dh);
}//end if($dh
}//end function
function checkBOM($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($charset[1]) 239 187 191){
if($auto 1){
$rest substr($contents, 3);
rewrite ($filename, $rest);
return "BOM found, automatically removed.";
}else{
return ("BOM found.");
}
} www.jb51.net
else return ("BOM Not Found.");
}//end function
function rewrite($filename, $data){
$filenum fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}//end function
?>