添加文件记录，默认是文件记录方式

@@ -23,6 +23,13 @@ class UdpLog
     public static $port = '4444';
     //influxdb measurement
     public static $measurement = 'php_log';
+    
+    public static $filePath = '/Data/logs/';
+    
+    const RECORD_MODE_FILE = 'FILE';
+    const RECORD_MODE_UDP = 'UDP';
+    
+    const RECORD_MODE = 'FILE';//mode: FILE | UDP
 
     /**
      * proc line and send log to influxdb
@@ -30,27 +37,82 @@ class UdpLog
      * @param $message
      * @param $meta
      */
-    private static function procLog($level,$message,$debugInfo,$meta='') {
+    private static function procLog($level, $message, $debugInfo, $meta = '') {
+        date_default_timezone_set('PRC');
         $level = str_replace(__CLASS__.'::','',$level);
         $file = $debugInfo[0]["file"];
         $line = $debugInfo[0]["line"];
-
+        $string = '';
         //make tags
         $tags = array(
-            'host='.gethostname(),
-            'level='.$level,
-            'file='.$file,
-            'line='.$line
+             'time' => date('Y-m-d H:i:s',time()),
+              'level' => $level,
+              'host'=> gethostname(),
+              'file'=> $file,
+              'line'=> $line,
+              'message' => $message,
+              'meta' => serialize($meta)
         );
-
         //make a line
-        $tags = implode(',',$tags);
-
-        $string = self::$measurement .','.$tags.' message="'.$message.'",meta="'.var_export($meta,true).'"';
-        self::send($string);
+        $string = implode('|', $tags);//format: time|level|host|file|line|message|meta
+        if(self::RECORD_MODE == self::RECORD_MODE_UDP) {
+            self::send($string);
+        }
+        else if(self::RECORD_MODE == self::RECORD_MODE_FILE) {
+            self::fileLog($level, $string);
+        }
     }
 
     /**
+     * 文件日志记录
+     * 
+     * @param string $level
+     * @param string $message
+     */
+    private static function fileLog($level, $message)
+    {
+        $filename = $level . '.log'; //日志文件
+        $logFile = self::createPath(self::$filePath, $filename);
+        if (!file_exists(self::$filePath))//判断文件路径是否存在
+        {
+            if (!empty(self::$filePath))//判断路径是否为空
+            {
+                if (!(self::createDir(self::$filePath))) {
+                    return false;
+                }
+                if (!is_writable($logFile)) {
+                    return false;
+                }
+            }
+        }
+        @error_log($message."\r\n", 3, $logFile);
+    }
+    
+    /**
+     * 作用:创建目录
+     * 输入:要创建的目录
+     * 输出:true | false
+     */
+    private static function createDir($dir)
+    {
+        return is_dir($dir) or (self::createDir(dirname($dir)) and mkdir($dir, 0777));
+    }
+    
+    /**
+     * 作用:构建路径
+     * 输入:文件的路径,要写入的文件名
+     * 输出:构建好的路径字串
+     */
+    private static function createPath($dir, $filename)
+    {
+        if (empty($dir)) {
+            return $filename;
+        } else {
+            return $dir . "/" . $filename;
+        }
+    }
+    
+    /**
      * send by udp
      * @param $string
      */