1 //单个模型实例序列化成数组 2 $user = App\User::with('roles')->first(); 3 return $user->toArray(); 4 //集合序列化成数组 5 $users = App\User::all(); 6 return $users->toArray(); 7 8 //单个模型实例序列化成JSON 9 $user = App\User::find(1); 10 return $user->toJson(...
如果互相喜欢,则添加双向联系人关系,插入之前校验是否存在,存在则更新type等字段,不存在则插入双向数据 我们通过这个场景能非常好的体会laravel-upsert的强大,不仅减少了代码量,也减少了sql 查询次数,提升了性能。 优化代码前 代码语言:javascript 代码运行次数:0 运行 AI代码解释 //校验是否存储publicstaticfunctioncheck...
AI代码解释 $query=\DB::table('users')->where('id',10);$sql=str_replace_array('?',$query->getBindings(),$query->toSql());dd($sql); 生成的SQL语句,使用问号作为位置参数,如果想要格式化输出,还可以使用 vsprintf 这个函数:
Once the files have been versioned, you may use theelixirhelper function to generate links to the proper hashed files. Remember, you only need to pass the name of the un-hashed file to theelixirhelper function. The helper will use the un-hashed name to determine the current hashed version ...
The path method returns the request's path information. So, if the incoming request is targeted at http://example.com/foo/bar, the path method will return foo/bar:1$uri = $request->path();Inspecting The Request Path / RouteThe is method allows you to verify that the incoming request ...
我喜欢把这个监听器封装在配置检查的时候,以便可以控制记录查询日志的开关。你也可以从 Laravel Debugbar 获取到更多相关的信息。 首先,尝试一下在不使用预加载模型的时候,会发生什么情况。清除你的 storage/log/laravel.log 文件当中的内容然后运行 "tinker" 命令: ...
Nodebarhas no primary key specified, so it will be created. $deleteshows whether to delete nodes that are already exists but not present in$data. By default, nodes aren't deleted. Rebuilding a subtree As of 4.2.8 you can rebuild a subtree: ...
<?php$data=array('foo'=>'bar', 'baz'=>'boom', 'cow'=>'milk', 'php'=>'hypertext processor');echohttp_build_query($data) . "\n";echohttp_build_query($data, '', '&');?>//输出以下内容:foo=bar&baz=boom&cow=milk&php=hypertext+processor ...
. Setting new values merges them with the previous ones. Set also supports dot notation.GoogleTagManager::set(['foo'=>'bar']);GoogleTagManager::set('baz', ['ho'=>'dor']);GoogleTagManager::set('baz.ho','doorrrrr');// [// 'foo' => 'bar',// 'baz' => ['ho' => 'door...
maatwebsite laravel excel导出列与下拉列表工作表事件的实现可能会相当混乱，很难找到例子，所以当我看到...