Question

什么是Bom头 怎样去除PHP文件的Bom头

Answer 1

方法一：用Ultraedit或Editplus打开PHP文件，另存为无Bom的utf-8文件方法二：用Dreamweaver去除Bom头
菜单–修改–页面属性 或者ctrl+j打开页面属性窗口，点选“标题/编码”去掉“包括Unicode签名Bom”前的勾
有Bom的文件太多？这样太麻烦？当然有更好的方法！方法三：用php文件批量去除bom头 将以下这段代码保存为php文件，上传到服务器，用浏览器访问它！<?phpif (isset($_GET['dir'])){ //设置文件目录
$basedir=$_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, $rest);
return (<font color=redBOM found, automatically removed.</font);} else {return (<font color=redBOM found.</font);}}else return (BOM Not Found.);}function rewrite ($filename, $data) {
$filenum = fopen($filename, w);
flock($filenum, LOCK_EX);
fclose($filenum);}?还用记事本保存？那你真是智商捉急了！