PHP example: detect and clear BOM information at the beginning of the file
Release： 2016-07-25 08:51:28
Original
907 people have browsed it
-
- ini_set('memory_limit', '-1');
- /*检测并清除BOM*/
- $basedir = dirname(__FILE__);//扫描当前文件路径 可自动设置
- $auto = 1;
- checkdir($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($dirname);
- }
- }
- }//end while
- closedir($dh);
- }//end if($dh
- }//end function
- function checkBOM($filename){
- global $auto; // bbs.it-home.org
- $contents = file_get_contents($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, $rest);
- return "BOM found, automatically removed.";
- }else{
- return ("BOM found.");
- }
- }
- else return ("BOM Not Found.");
- }//end function
- function rewrite($filename, $data){
- $filenum = fopen($filename, "w");
- flock($filenum, LOCK_EX);
- fwrite($filenum, $data);
- fclose($filenum);
- }//end function
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