php遍历目录读写文件

$f = fopen($tmpLog, 'w');
foreach(glob("$logDir/*") as $pubDir)//遍历目录
{
        echo basename($pubDir) ."\n";;
        foreach(glob("$pubDir/*") as $fileName)
        {
            echo basename($fileName);
            $stdin = fopen($fileName, 'r');
            while($line = fgets($stdin)) // 对每行日志进行处理
            {
                if($line){
                    fwrite($f, "$line`" . basename($pubDir) . "`" . basename($fileName) . "\n");
                }
            }
        }
}
fclose($f);