Laravel: Retrieve the Last Executed SQL Query and Bindings with Code Examples

This article demonstrates how to retrieve the last executed SQL query and its bound values in Laravel by enabling the query log, and shows how to output the logged queries and result arrays.

<code>public function getOrderDetail($orderId){
    \DB::connection()->enableQueryLog(); // 开启查询日志
    $ordeList = OrderItem::where('order_id',$orderId)->get()->toArray();
    $queries = \DB::getQueryLog(); // 获取查询日志
    echo "<pre>";
    print_r($queries);
    echo PHP_EOL;
    print_r($ordeList);
    echo "

"; }

It then presents a method to fetch specific columns of order items, ordering by creation time, and displays the result.

<code>public function getOrderDetail($uid,$orderId){
    $user = $this->check_user($uid);
    $columns = ['id','order_id','item_id','item_name','item_price','original_price','buy_num','real_num','cancel_num','status','create_time'];
    $ordeList = OrderItem::where('order_id',$orderId)
        ->orderBy('create_time','desc')
        ->get($columns)->toArray();
    echo "<pre>";
    print_r($ordeList);
    echo "

"; exit; }

The guide also explains using Model::updateOrCreate to insert a new record when it does not exist or update it when it does.

Model::updateOrCreate(
   ['primary_key' => 8],
   ['field' => 'value', 'another_field' => 'another value']
);

A more complex example illustrates building a sub‑query with multiple conditional clauses using Laravel’s query builder, handling optional parameters such as type, levelId, and lessonId.

public function getCourseProgress($uid,$levelId=0,$lessonId=0,$type=0,$page=0){
    $user = $this->check_user($uid);
    $page = $page>0?$page:0;
    $perPage = config('bcc.per_page');
    $columns = ['*'];
    $result = LessonProgress::where('customer_id',$uid)
        ->where(function($query) use ($type){
            if($type) $query->where('source_type',$type);
        })
        ->where(function($query) use ($levelId,$lessonId){
            if($levelId && $lessonId){
                $query->where(['level_id'=>$levelId,'lesson_id'=>$lessonId]);
            } elseif($levelId){
                $query->where('level_id', $levelId);
            }
        })->get();
    if($result->isEmpty()) return $this->responseSuccess([], 'No relevant information', 20000);
    return $this->responseCollection($result, new CourseProgressTransformer);
}

Finally, it shows how to execute raw SQL fragments with selectRaw, for instance aggregating letters with group_concat, and notes that raw SQL can be written directly inside selectRaw.

// 声母韵母分两类
$data = Pronounce::selectRaw('group_concat(`letter`) as letters')
    ->groupBy('pronounce_type')
    ->get()
    ->toArray();

selectRaw里面可以直接写sql子句