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 Psr/Log;/** * 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());}