去除目录下文件的BOM头

无详细内容 无 源码与演示： 源码出处 ?phpif (!empty($_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 = rea

源码与演示：源码出处

";  
           }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, $rest);  
           return ("BOM found, automatically removed.");  
       }else {  
           return ("BOM found.");  
       }  
    }else return ("BOM Not Found.");  
}  
function rewrite ($filename, $data) {  
    $filenum = fopen($filename, "w");  
    flock($filenum, LOCK_EX);  
    fwrite($filenum, $data);  
    fclose($filenum);  
}

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 ("BOM found, automatically removed.");  

           }else {  

              return ("BOM found.");  

           }  

       }else return ("BOM Not Found.");  

    }