批量去除PHP檔案中bom的PHP程式碼

ap0581w9c發表於2012-11-02
PHP
今天搜尋檢視網頁原始碼時為什麼開頭會有空行這個問題時找到的，批量去除PHP檔案中bom的PHP程式碼
 
 
需要去除BOM，就把附件裡的tool.php檔案放到目標目錄，然後在瀏覽器訪問tool.php即可！ 
<?php
/*檢測並清除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  
?>

 


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