Laravel框架实现利用监听器进行sql语句记录功能

本文实例讲述了Laravel框架实现利用监听器进行sql语句记录功能。分享给大家供大家参考，具体如下：

利用监听器进行sql语句记录

1、监听sql语句的事件类已经定义，直接创建监听器类即可：

# 监听sql
make:listener QueryListener --event=Illuminate\Database\Events\QueryExecuted

2、监听器类代码

./app/Listeners/QueryListener.php

<?php
namespace App\Listeners;
use Illuminate\Database\Events\QueryExecuted;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use App\Http\Models\OperationLog;
class QueryListener
{
  /**
   * Create the event listener.
   *
   * @return void
   */
  public function __construct()
  {
    //
  }
  /**
   * Handle the event.
   *
   * @param QueryExecuted $event
   * @return void
   */
  public function handle(QueryExecuted $event)
  {
    $sql = str_replace("?", "'%s'", $event->sql);
    $log = vsprintf($sql, $event->bindings);
    # 此处$uid定义是依赖于中间件记录操作日志代码
    $uid = isset($_SERVER['admin_uid']) ? $_SERVER['admin_uid'] : 0;
    if('select' != substr($log , 0 , 6)){
      if('insert into `operationLog`' != substr($log , 0 , 26)){
        $OperationLog = new OperationLog();
        $OperationLog->uid = $uid;
        $OperationLog->sql = $log;
        $OperationLog->input = '';
        $OperationLog->save();
      }
    }
  }
}

3、引入监听器

./app/Providers/EventServiceProvider.php

protected $listen = [
    ...
    \Illuminate\Database\Events\QueryExecuted::class => [
      'App\Listeners\QueryListener'
    ],
    ...
  ];

此时进行操作时就会记录sql日志

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希望本文所述对大家基于Laravel框架的PHP程序设计有所帮助。