<?php
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//以下为日志
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interface ILogHandler
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{
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public function write($msg);
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}
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class CLogFileHandler implements ILogHandler
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{
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private $handle = null;
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public function __construct($file = '')
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{
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$this->handle = fopen($file,'a');
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}
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public function write($msg)
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{
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fwrite($this->handle, $msg, 4096);
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}
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public function __destruct()
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{
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fclose($this->handle);
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}
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}
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class Log
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{
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private $handler = null;
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private $level = 15;
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private static $instance = null;
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private function __construct(){}
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private function __clone(){}
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public static function Init($handler = null,$level = 15)
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{
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if(!self::$instance instanceof self)
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{
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self::$instance = new self();
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self::$instance->__setHandle($handler);
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self::$instance->__setLevel($level);
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}
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return self::$instance;
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}
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private function __setHandle($handler){
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$this->handler = $handler;
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}
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private function __setLevel($level)
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{
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$this->level = $level;
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}
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public static function DEBUG($msg)
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{
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self::$instance->write(1, $msg);
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}
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public static function WARN($msg)
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{
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self::$instance->write(4, $msg);
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}
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public static function ERROR($msg)
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{
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$debugInfo = debug_backtrace();
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$stack = "[";
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foreach($debugInfo as $key => $val){
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if(array_key_exists("file", $val)){
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$stack .= ",file:" . $val["file"];
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}
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if(array_key_exists("line", $val)){
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$stack .= ",line:" . $val["line"];
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}
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if(array_key_exists("function", $val)){
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$stack .= ",function:" . $val["function"];
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}
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}
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$stack .= "]";
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self::$instance->write(8, $stack . $msg);
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}
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public static function INFO($msg)
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{
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self::$instance->write(2, $msg);
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}
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private function getLevelStr($level)
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{
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switch ($level)
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{
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case 1:
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return 'debug';
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break;
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case 2:
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return 'info';
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break;
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case 4:
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return 'warn';
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break;
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case 8:
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return 'error';
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break;
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default:
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}
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}
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protected function write($level,$msg)
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{
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if(($level & $this->level) == $level )
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{
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$msg = '['.date('Y-m-d H:i:s').']['.$this->getLevelStr($level).'] '.$msg."\n";
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$this->handler->write($msg);
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}
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}
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}
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