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
希望本文所述对大家基于Laravel框架的PHP程序设计有所帮助。
