檢查並清除php檔案中bom的函數

/** 功能：檢測並清除BOM link：bbs.it-home.org */ 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")." "; }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, $rest); return "BOM found, automatically removed."; }else{ return ("BOM found."); } } else return ("BOM Not Found."); } function rewrite($filename, $data){ $filenum = fopen($filename, "w"); flock($filenum, LOCK_EX); fwrite($filenum, $data); fclose($filenum); } ?> 複製代碼

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