<?php
$basedir = str_replace ( '/clearBOM.php' , '' , str_replace ( '\\' , '/' ,dirname( __FILE__ )));
$auto = 1;
checkdir( $basedir );
function checkdir( $basedir ){
if ( $dh = opendir( $basedir )) {
while (( $file = readdir( $dh )) !== false) {
if ( $file != '.' && $file != '..' ){
if (! is_dir ( $basedir . '/' . $file )) {
$filename = $basedir . '/' . $file ;
echo 'filename:' . $basedir . '/' . $file .checkBOM( $filename ). '<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 );
}
?>
使用的方法是将该代码放入文件后放在网站的根目录,或者你想去哪个目录的BOM就放在哪个目录,然后直接用URL访问这个PHP文件就可以了!