php 日志调试

/**
 * 仅用于日志调试
 *
 * @param  string|array $content    日志内容
 * @param  bool         $json       是否采用JSON格式存储
 * @param  bool         $append     是否采用追加模式记录日志
 * @param  string       $filename   文件名(考虑到权限问题,统统压入/tmp目录)
 *
 * @return int
 */
if (!function_exists("debug")) {
    function debug($content, $json = true, $append = true, $filename = "debug", $base_dir = "/tmp/")
    {
        if (empty($filename) || empty($content)) return 0;
        $filename = str_replace("/", "", $filename);
        $filename = str_replace("\\", "", $filename);
        //        if ("linux" == strtolower(PHP_OS)) {
        //            $dir = !empty($base_dir) ? $base_dir : (env("CACHE_DIR") ? env("CACHE_DIR") . "/logs/" : "/tmp/");
        //        } else {
        //            $dir = env("CACHE_DIR") ? CACHE_DIR : 'C:\\';
        //        }
        $dir = storage_path('logs/' . date('Ymd'));
        $rs = true;
        //if (!is_dir($dir)) {
        $rs = @mkdir($dir, 0755, true);
        //}
        if (empty($rs)) $dir = "/tmp/";
        $filename = $dir . DIRECTORY_SEPARATOR . $filename . ".log";
        if (!empty($json)) {
            $content = json_encode($content, JSON_UNESCAPED_UNICODE);
        } else {
            $content = var_export($content, true);
        }
        $client_ip = getClientIp();
        $log_time = date('Y-m-d H:i:s', time());
        $content = "【" . $log_time . " | {$client_ip}】" . $content . "\r\n";
        if (empty($append)) {
            $rs = file_put_contents($filename, $content);
        } else {
            $rs = file_put_contents($filename, $content, FILE_APPEND);
        }
        return $rs;
    }
}