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    【已解决】PHP将log信息写入服务器中的log文件

    PHP crifan 4171浏览 0评论

    【背景】

    折腾：

    【记录】php中如何写类和如何使用类

    期间，需要整理出一份，可配置的，通用的，log系统。

    支持写入log信息到log文件中。

     

    【折腾过程】

    1.搜：

    php log to file

    参考：

    PHP: error_log – Manual

    PHP: syslog – Manual

    How to create logs with PHP – Web Services Wiki

    Write to a log file with PHP | Redips spideR Net

    下载代码：

    Download redips10.tar.gz

    2.期间：

    【已解决】PHP中函数前面加上at符号@的作用

    3.然后用代码：

    crifanLib.php

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    <?php
    /*
    [Filename]
    crifanLib.php
     
    [Function]
    crifan's php lib, implement common functions
     
    [Author]
    Crifan Li
     
    [Contact]
    https://www.crifan.com/contact_me/
     
    [Note]
    1.online see code:
    http://code.google.com/p/crifanlib/source/browse/trunk/php/crifanLib.php
     
    [TODO]
     
    [History]
    [v1.0]
    1.initial version, need clean up later
     
    */
     
    class crifanLib {
     
        private $logFile;
        private $logFp;
     
        /*
            Init log file
        */
        function logInit($inputLogFile = null){
            // set default log file name
            // in case of Windows set default log file
            //http://stackoverflow.com/questions/1482260/how-to-get-the-os-on-which-php-is-running
            //http://php.net/manual/zh/function.php-uname.php
            if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
                $defautLogFile = 'C:/php/defLogFile.log';
            }
            // set default log file for Linux and other systems
            else {
                $defautLogFile = '/tmp/defLogFile.log';
            }
     
            $this->logFile = $inputLogFile ? $inputLogFile : $defautLogFile;
            // open log file for writing only and place file pointer at the end of the file
            // (if the file does not exist, try to create it)
            $this->logFp = fopen($this->logFile, 'a') or exit("Can't open $this->logFile!");
        }
     
        /*
            Write log info to file
        */
        function logWrite($logContent){
            // if file pointer doesn't exist, then open log file
            if (!is_resource($this->logFp)) {
                $this->logInit();
            }
            // define script name
            $script_name = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME);
            // define current time and suppress E_WARNING if using the system TZ settings
            // (don't forget to set the INI setting date.timezone)
            $time = @date('[Y-m-d H:i:s] ');
            // write current time, script name and message to the log file
            fwrite($this->logFp, "$time ($script_name) $logContent" . PHP_EOL);
        }
     
        /*
            Deinit log
        */
        function logDeinit(){
            if (is_resource($this->logFp)) {
                fclose($this->logFp);
            }
        }
    }
     
     ?>

    然后测试代码：

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    <?php
    /*
        Author:     Crifan Li
        Version:    2015-07-27
        Contact:    https://www.crifan.com/about/me/
        Function:   Wechat get access token
    */
     
    include_once "crifanLib.php";
     
    //test log
    $crifanLib = new crifanLib();
    $crifanLib->logInit("/xxx/access_token/crifanLibTest.log");
    $crifanLib->logWrite("This is crifanLib log test message.");
    $crifanLib->logDeinit();
     
    ?>

    然后去执行对应的代码：

    http://xxx/access_token/wx_access_token.php

    页面是没有任何输出的：

    run log test but no output

    然后的确生成了log文件了：

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    root@chantyou:php# cd access_token/
    root@chantyou:access_token# ll
    total 16
    -rwxrwxrwx 1 root root 9335 Jul 27 17:51 crifanLib.php
    -rwxrwxrwx 1 root root  567 Jul 27 17:52 wx_access_token.php
    root@chantyou:access_token# ll
    total 20
    -rwxrwxrwx 1 root   root   9335 Jul 27 17:51 crifanLib.php
    -rw-r--r-- 1 apache apache   77 Jul 27 17:56 crifanLibTest.log
    -rwxrwxrwx 1 root   root    567 Jul 27 17:52 wx_access_token.php
    root@chantyou:access_token# cat crifanLibTest.log
    [2015-07-27 10:10:33]  (wx_access_token) This is crifanLib log test message.
    root@chantyou:access_token#

    【注意】

    要记得给对应的（此处是Linux服务器中的对应的文件夹添加写权限：

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    root@chantyou:php# ll
    total 48
    drwxr-xr-x 2 root root 4096 Jul 27 17:55 access_token
    -rwxr-xr-x 1 root root 1091 Sep 25  2014 errorCode.php
    -rw-r--r-- 1 root root 2230 Jun 10 14:16 MicromsgVerify.php
    -rwxr-xr-x 1 root root 4288 Sep 25  2014 pkcs7Encoder.php
    -rwxr-xr-x 1 root root  452 Sep 15  2014 Readme.txt
    -rwxr-xr-x 1 root root  724 Sep 22  2014 sha1.php
    drwxr-xr-x 2 root root 4096 Jul 20 12:34 wechat_encypt
    -rwxr-xr-x 1 root root 5327 Sep 15  2014 WXBizMsgCrypt.php
    -rwxrwxrwx 1 root root 2455 Jul 16 18:06 wx_didaosuzhou.php
    -rwxr-xr-x 1 root root 1346 Sep 22  2014 xmlparse.php
    root@chantyou:php# chmod ugo+wx access_token/  
    root@chantyou:php# ll
    total 48
    drwxrwxrwx 2 root root 4096 Jul 27 17:55 access_token
    -rwxr-xr-x 1 root root 1091 Sep 25  2014 errorCode.php
    -rw-r--r-- 1 root root 2230 Jun 10 14:16 MicromsgVerify.php
    -rwxr-xr-x 1 root root 4288 Sep 25  2014 pkcs7Encoder.php
    -rwxr-xr-x 1 root root  452 Sep 15  2014 Readme.txt
    -rwxr-xr-x 1 root root  724 Sep 22  2014 sha1.php
    drwxr-xr-x 2 root root 4096 Jul 20 12:34 wechat_encypt
    -rwxr-xr-x 1 root root 5327 Sep 15  2014 WXBizMsgCrypt.php
    -rwxrwxrwx 1 root root 2455 Jul 16 18:06 wx_didaosuzhou.php
    -rwxr-xr-x 1 root root 1346 Sep 22  2014 xmlparse.php

    否则会报错的：

    Can’t open /xxx/access_token/crifanLibTest.log file!

     

    4.不过突然想起来：

    之前已经学过了，

    file_put_contents

    就可以替代了：fopen，fwrite，fclose了。

    所以再去优化为：

    crifanLib.php

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    <?php
    /*
    [Filename]
    crifanLib.php
     
    [Function]
    crifan's php lib, implement common functions
     
    [Author]
    Crifan Li
     
    [Contact]
    https://www.crifan.com/contact_me/
     
    [Note]
    1.online see code:
    http://code.google.com/p/crifanlib/source/browse/trunk/php/crifanLib.php
     
    [TODO]
     
    [History]
    [v2015-07-27]
    1.add logInit, logWrite
     
    [v1.0]
    1.initial version, need clean up later
     
    */
     
    class crifanLib {
     
        private $logFile;
        private $logFp;
     
        /*
            Init log file
        */
        function logInit($inputLogFile = null){
            // set default log file name
            // in case of Windows set default log file
            //http://stackoverflow.com/questions/1482260/how-to-get-the-os-on-which-php-is-running
            //http://php.net/manual/zh/function.php-uname.php
            if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
                $defautLogFile = 'C:/php/defLogFile.log';
            }
            // set default log file for Linux and other systems
            else {
                $defautLogFile = '/tmp/defLogFile.log';
            }
     
            $this->logFile = $inputLogFile ? $inputLogFile : $defautLogFile;
        }
     
        /*
            Write log info to file
        */
        function logWrite($logContent){
            // define script name
            $scriptName = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME);
            // define current time and suppress E_WARNING if using the system TZ settings
            // (don't forget to set the INI setting date.timezone)
            $timeStr = @date('[Y-m-d H:i:s]');
             
            // write current time, script name and message to the log file
            file_put_contents($this->logFile, "$timeStr ($scriptName) $logContent" . PHP_EOL, FILE_APPEND);
     
        }
    }
     
     ?>

    测试文件为：

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    <?php
    /*
        Author:     Crifan Li
        Version:    2015-07-27
        Contact:    https://www.crifan.com/about/me/
        Function:  test crifanLib log
    */
     
    include_once "crifanLib.php";
     
    //test log
    $crifanLib = new crifanLib();
    $crifanLib->logInit("/xxx/logTest.log");
    $crifanLib->logWrite("This is crifanLib log test message using file_put_contents");
     
    ?>

    效果是：

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    root@chantyou:access_token# ll
    total 16
    -rw-r--r-- 1 root root 9524 Jul 27 18:16 crifanLib.php
    -rwxrwxrwx 1 root root  561 Jul 27 18:18 wx_access_token.php
    root@chantyou:access_token# ll
    total 20
    -rw-r--r-- 1 root   root   9524 Jul 27 18:16 crifanLib.php
    -rw-r--r-- 1 apache apache   76 Jul 27 18:19 logTest.log
    -rwxrwxrwx 1 root   root    561 Jul 27 18:18 wx_access_token.php
    root@chantyou:access_token# cat logTest.log
    [2015-07-27 12:05:47] (wx_access_token) This is crifanLib log test message using file_put_contents
    root@chantyou:access_token#

    如图：

    php write log file show result

     

    注：

    期间参考：

    PHP: is_resource – Manual

     

    【总结】

    1.此处可以通过：

    • fopen创建log文件
    • fwrite写入文件信息
    • fclose关闭文件

    去实现log信息写入到文件中的。

    2.更好的做法是：

    直接用更方便的

    • file_put_contents直接输出内容到log文件

    即可。

    转载请注明：在路上 » 【已解决】PHP将log信息写入服务器中的log文件

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