tp5框架使用composer实现日志记录功能示例

composer require psr/log

<?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());}

<?phpnamespace Psr/Log;/** * 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';}

<?phpnamespace Psr/Log;/** * 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);  }}

<?phpnamespace Psr/Log;use app/index/model/LogModel;/** * 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;  }}

<?php/** * @author: jim * @date: 2017/11/16 */namespace app/index/model;use think/Model;/** * Class LogModel * @package app/index/model * * 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;  }}

<?phpnamespace app/index/controller;use think/Controller;use Psr/Log/Logger;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";  }}

use Psr/Log/Logger;

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

//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"];}