调试代码

app/Providers/EventServiceProvider.php

@@ -3,7 +3,10 @@
 namespace App\Providers;
 
 use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
+use Illuminate\Database\Events\QueryExecuted;
 use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
 
 class EventServiceProvider extends ServiceProvider
 {
@@ -28,6 +31,35 @@ class EventServiceProvider extends ServiceProvider
     {
         parent::boot($events);
 
+//        //监听laravel框架执行的sql语句 并记录到log日志文件中
+//        DB::listen(function(QueryExecuted $event){
+//
+//            $sql      = $event->sql; //执行的sql语句
+//            $bindings = $event->bindings; //sql语句对应绑定的sql值
+//            $time     = $event->time; //sql执行的时间
+//
+//            $bindings = array_map(function($binding){
+//                if(is_string($binding))
+//                {
+//                    return "'$binding'"; //如果$binding是字符串类型 则要将$binding的左右两边拼接上'' 即 字符串=》 '字符串'
+//                }
+//                else if($binding instanceof \DateTime)
+//                {
+//                    return $binding->format("'Y-m-d H:i:s'"); //如果$binding是一个DateTime对象 则格式化时间 并在左右俩边拼接上''
+//                }
+//                else
+//                {
+//                    return $binding; //直接返回$binding原本的值
+//                }
+//            }, $bindings);
+//
+//            $sql = str_replace('?', '%s', $sql); //将sql语句中的?换成%s
+////            $sql = sprintf($sql, ...$bindings);  //将$bindings数组中的每一个元素替换掉$sql中的%s的位置
+//
+//            Log::info("sql_log", ["sql" => $sql, "execute_time" => $time]); //将最终生成的sql语句写入到log日志文件中
+//
+//        });
+
         //
     }
 }