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php bom头问题解决
jquery post echo：
1、输出1或0时，始终头部有个符号，用字符判断时无法正常判断，用数值判断时不受影响。
if(!empty($phone_mob)){
echo 0;
}else{
//header("Content-Type: text/html;charset=utf-8");
echo 1;
//exit;
}
2、判断估计bom头问题，检查确实时头部异常字符输出。
ob_start();
ob_clean();
echo ‘---‘;
if(!empty($phone_mob)){
echo 0;
}else{
//header("Content-Type: text/html;charset=utf-8");
echo 1;
//exit;
}
ob_end_flush();
echo ‘=====‘;
3、用checkbom.php检查并去掉文件bom头后问题解决。
<?php
/*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 != ‘.‘ && $file != ‘..‘){
if(!is_dir($basedir."/".$file)){
echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";
}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($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191){
if($auto == 1){
$rest = substr($contents, 3);
rewrite ($filename, $rest);
return "<font color=red>BOM found, automatically removed.</font>";
}else{
return ("<font color=red>BOM found.</font>");
}
}
else return ("BOM Not Found.");
}//end function
function rewrite($filename, $data){
$filenum = fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}//end function
?>
php bom头问题解决