PHP 记录日志文件

---

function xmsb_writelog($data, $fileName)
{
    $month = date('Y-m');
    $day = date('d');
    $dir_name = './log/'.$month.'/';
    $path = $dir_name . $fileName . '_' . $day . '_request_log.txt';

    // 检测目录是否存在,若不存在则进行创建
    if(!file_exists($dir_name))
    {
        $res = mkdir(iconv('UTF-8', 'GBK', $dir_name), 0777, true);
    }

    // 以写入方式打开文件
    $fp = fopen($path, 'a');

    // 定义写入内容
    $time = '['.date('Y-m-d H:i:s').'] ';
    $text = var_export($data, true);

    // 写入并关闭文件
    fwrite($fp, $time.$text."\r\n");
    fclose($fp);
}