$collection = collect([1, 2, 3, 4, 5]); $collection->contains(function ($value, $key) { return $value > 5; }); // falseThe contains method uses "loose" comparisons when checking item values, meaning a string with an integer value will be considered equal to an integer of the ...
$collection->merge([1, 2, 3]); });HTTP 客户端默认超时时间影响的可能性:中等HTTP 客户端 现在默认超时为 30 秒。 也就是说,如果服务器在 30 秒内没有响应,就会抛出异常。以前,在 HTTP 客户端上没有配置默认超时长度,导致请求有时会无限期地“挂起”。如果您希望为给定请求指定更长的超时时间,您可以...
The above approach has an additional overhead of hydratingPostmodel for each and every row and creating a collection for these objects. This would be best if you really need thePostmodel instance instead of the data. But if all that you need is those two values, you can do the following....
$collection->collapse(); // 用来判断该集合是否含有指定的项目: $collection->contains('New York'); // 返回该集合内的项目总数: $collection->count(); // 遍历集合中的项目,并将之传入给定的回调函数: $collection = $collection->each(function ($item, $key) { }); // 会创建一个包含第 n 个...
$validated = $request->safe()->merge(['name' => 'Taylor Otwell']); collect 方法以 collection 实例的形式来检索验证的数据:$collection = $request->safe()->collect(); 使用错误消息在调用 Validator 实例的 errors 方法后,会收到一个 Illuminate\Support\MessageBag 实例,用于处理错误信息。自动提供...
1collect([1, 2, 3, 4])->first(function ($key, $value) { 2 return $value > 2; 3}); 4 5// 3You may also call the first method with no arguments to get the first element in the collection. If the collection is empty, null is returned:...
1collect([1, 2, 3, 4])->first(function ($key, $value) { 2 return $value > 2; 3}); 4 5// 3You may also call the first method with no arguments to get the first element in the collection. If the collection is empty, null is returned:...
$validated = $request->safe()->merge(['name' => 'Taylor Otwell']); 如果您想将经过验证的数据作为 collection 实例检索,您可以调用 collect 方法:$collection = $request->safe()->collect(); 处理错误信息通过Validator 实例调用 errors 方法,它会返回一个 Illuminate\Support\MessageBag 实例,该实例...
所以我从国外的一个网站上搬来了with和load的用法,大家自行领悟吧。 with() load() Both accomplish the same end results—eager loading a related model onto the first. In fact, they both run exactly the same two queries. The key difference is that with() eager loads the related model up fron...
it should be foreign * key in $class model. If it's an array or Eloquent collection, it...