tp5框架使用composer实现日志记录功能示例

本文实例讲述了tp5框架使用composer实现日志记录功能。分享给大家供大家参考，具体如下：

tp5实现日志记录

1.安装 psr/log

composer require psr/log

它的作用就是提供一套接口，实现正常的日志功能！

我们可以来细细的分析一下，LoggerInterface.php

<?phpnamespace PsrLog;/** * Describes a logger instance. * * The message MUST be a string or object implementing __toString(). * * The message MAY contain placeholders in the form: {foo} where foo * will be replaced by the context data in key "foo". * * The context array can contain arbitrary data. The only assumption that * can be made by implementors is that if an Exception instance is given * to produce a stack trace, it MUST be in a key named "exception". * * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md * for the full interface specification. */interface LoggerInterface{  /**   * System is unusable.   *   * @param string $message   * @param array $context   *   * @return void   */  public function emergency($message, array $context = array());  /**   * Action must be taken immediately.   *   * Example: Entire website down, database unavailable, etc. This should   * trigger the SMS alerts and wake you up.   *   * @param string $message   * @param array $context   *   * @return void   */  public function alert($message, array $context = array());  /**   * Critical conditions.   *   * Example: Application component unavailable, unexpected exception.   *   * @param string $message   * @param array $context   *   * @return void   */  public function critical($message, array $context = array());  /**   * Runtime errors that do not require immediate action but should typically   * be logged and monitored.   *   * @param string $message   * @param array $context   *   * @return void   */  public function error($message, array $context = array());  /**   * Exceptional occurrences that are not errors.   *   * Example: Use of deprecated APIs, poor use of an API, undesirable things   * that are not necessarily wrong.   *   * @param string $message   * @param array $context   *   * @return void   */  public function warning($message, array $context = array());  /**   * Normal but significant events.   *   * @param string $message   * @param array $context   *   * @return void   */  public function notice($message, array $context = array());  /**   * Interesting events.   *   * Example: User logs in, SQL logs.   *   * @param string $message   * @param array $context   *   * @return void   */  public function info($message, array $context = array());  /**   * Detailed debug information.   *   * @param string $message   * @param array $context   *   * @return void   */  public function debug($message, array $context = array());  /**   * Logs with an arbitrary level.   *   * @param mixed $level   * @param string $message   * @param array $context   *   * @return void   */  public function log($level, $message, array $context = array());}

这是一套日志正常的接口，有层级，有消息，有具体的内容。

LogLevel.php

<?phpnamespace PsrLog;/** * Describes log levels. */class LogLevel{  const EMERGENCY = "emergency";  const ALERT   = "alert";  const CRITICAL = "critical";  const ERROR   = "error";  const WARNING  = "warning";  const NOTICE  = "notice";  const INFO   = "info";  const DEBUG   = "debug";}

定义一些错误常量。

AbstractLogger.php实现接口

<?phpnamespace PsrLog;/** * This is a simple Logger implementation that other Loggers can inherit from. * * It simply delegates all log-level-specific methods to the `log` method to * reduce boilerplate code that a simple Logger that does the same thing with * messages regardless of the error level has to implement. */abstract class AbstractLogger implements LoggerInterface{  /**   * System is unusable.   *   * @param string $message   * @param array $context   *   * @return void   */  public function emergency($message, array $context = array())  {    $this->log(LogLevel::EMERGENCY, $message, $context);  }  /**   * Action must be taken immediately.   *   * Example: Entire website down, database unavailable, etc. This should   * trigger the SMS alerts and wake you up.   *   * @param string $message   * @param array $context   *   * @return void   */  public function alert($message, array $context = array())  {    $this->log(LogLevel::ALERT, $message, $context);  }  /**   * Critical conditions.   *   * Example: Application component unavailable, unexpected exception.   *   * @param string $message   * @param array $context   *   * @return void   */  public function critical($message, array $context = array())  {    $this->log(LogLevel::CRITICAL, $message, $context);  }  /**   * Runtime errors that do not require immediate action but should typically   * be logged and monitored.   *   * @param string $message   * @param array $context   *   * @return void   */  public function error($message, array $context = array())  {    $this->log(LogLevel::ERROR, $message, $context);  }  /**   * Exceptional occurrences that are not errors.   *   * Example: Use of deprecated APIs, poor use of an API, undesirable things   * that are not necessarily wrong.   *   * @param string $message   * @param array $context   *   * @return void   */  public function warning($message, array $context = array())  {    $this->log(LogLevel::WARNING, $message, $context);  }  /**   * Normal but significant events.   *   * @param string $message   * @param array $context   *   * @return void   */  public function notice($message, array $context = array())  {    $this->log(LogLevel::NOTICE, $message, $context);  }  /**   * Interesting events.   *   * Example: User logs in, SQL logs.   *   * @param string $message   * @param array $context   *   * @return void   */  public function info($message, array $context = array())  {    $this->log(LogLevel::INFO, $message, $context);  }  /**   * Detailed debug information.   *   * @param string $message   * @param array $context   *   * @return void   */  public function debug($message, array $context = array())  {    $this->log(LogLevel::DEBUG, $message, $context);  }}

Logger.php继承AbstractLogger.php

<?phpnamespace PsrLog;use appindexmodelLogModel;/** * This Logger can be used to avoid conditional log calls. * * Logging should always be optional, and if no logger is provided to your * library creating a NullLogger instance to have something to throw logs at * is a good way to avoid littering your code with `if ($this->logger) { }` * blocks. */class Logger extends AbstractLogger{  /**   * Logs with an arbitrary level.   *   * @param mixed $level   * @param string $message   * @param array $context   *   * @return void   */  public function log($level, $message, array $context = array())  {    // noop    $logModel = new LogModel();    $logModel->add($level,$message,json_encode($context));    echo $logModel->id;  }}

这里面的log方法是我自己写的！！！

我们需要把日志存储到数据库中！！！

这里我设计了一个log表，包含id、level、message、 context、ip、url、create_on等。

我创建了一个LogModel.php

<?php/** * @author: jim * @date: 2017/11/16 */namespace appindexmodel;use thinkModel;/** * Class LogModel * @package appindexmodel * * 继承Model之后，就可以使用继承它的属性和方法 * */class LogModel extends Model{  protected $pk = "id"; // 配置主键  protected $table = "log"; // 默认的表名是log_model  public function add($level = "error",$message = "出错啦",$context = "") {    $this->data([      "level" => $level,      "message" => $message,      "context" => $context,      "ip" => getIp(),      "url" => getUrl(),      "create_on" => date("Y-m-d H:i:s",time())    ]);    $this->save();    return $this->id;  }}

一切都准备好了，可以在控制器中使用了！

<?phpnamespace appindexcontroller;use thinkController;use PsrLogLogger;class Index extends Controller{  public function index()  {    $logger = new Logger();    $context = array();    $context["err"] = "缺少参数id";    $logger->info("有新消息");  }  public function _empty() {    return "empty";  }}

小结：

composer很好很强大！

这里是接口Interface的典型案例，定义接口，定义抽象类，定义具体类。

有了命名空间，可以很好的引用不同文件夹下的库！

互相使用，能够防止高内聚！即便是耦合也相对比较独立！

有了这个日志小工具，平时接口的一些报错信息就能很好的捕捉了！

只要

use PsrLogLogger;

然后

$logger = new Logger();$logger->info("info信息");

使用非常方便！！！

附上获取ip、获取url的方法。

//获取用户真实IPfunction getIp() {  if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))    $ip = getenv("HTTP_CLIENT_IP");  else    if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))      $ip = getenv("HTTP_X_FORWARDED_FOR");    else      if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))        $ip = getenv("REMOTE_ADDR");      else        if (isset ($_SERVER["REMOTE_ADDR"]) && $_SERVER["REMOTE_ADDR"] && strcasecmp($_SERVER["REMOTE_ADDR"], "unknown"))          $ip = $_SERVER["REMOTE_ADDR"];        else          $ip = "unknown";  return ($ip);}// 获取urlfunction getUrl() {  return "http://".$_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];}

更多关于thinkPHP相关内容感兴趣的读者可查看本站专题：《ThinkPHP入门教程》、《thinkPHP模板操作技巧总结》、《ThinkPHP常用方法总结》、《codeigniter入门教程》、《CI(CodeIgniter)框架进阶教程》、《Zend FrameWork框架入门教程》及《PHP模板技术总结》。

希望本文所述对大家基于ThinkPHP框架的PHP程序设计有所帮助。