$array= ['one','two','three','four'];$array=array_prepend($array,'zero');// ['zero', 'one', 'two', 'three', 'four'] 如果需要,您可以指定应该用于该值的键: $array= ['price'=>100];$array=array_prepend($array,'Desk','name');// ['name' => 'Desk', 'price' => 100] ...
该方法接收页码数作为第一个参数,每页显示数据项数作为第二个参数 $collection->forPage(2, 3); 分组集合数据项 $collection->groupBy('account_id'); 将指定键的值作为集合的键,类似array_column($arr,null,key) collect([ ['product_id' => 'prod-100', 'name' => 'desk'], ['product_id' => ...
这个 toArray() 并不是 Builder 中的方法,如果不加这个 toArray() ,返回的是什么大家有没有注意过? 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Route::get('model/test/collection',function(){$where=[];if(request()->name){$where[]=['name','like','%'.request()->name.'%'];}if(...
如果数组的长度小于集合的长度,Laravel 会给剩下的Collection类型的元素末尾添加null。类似地,如果数组的长度比集合的长度大,Laravel 会给Collection类型的元素添加null,然后再接着数组的值。 whereNotIn() 您可以使用whereNotIn方法简单地按照给定数组中未包含的键值过滤集合。 它基本上与whereIn相反。 此外,此方法在...
$title = $collection->pluck('title'); $title->all(); 结果看起来像这样。 [ "Helpers in Laravel", "Testing in Laravel", "Telegram Bot" ] When working with eloquent, you can pass a column name as an argument to extract its values.pluckalso accepts a second argument and in the case ...
This allows you to easily perform further validation and even add more error messages to the message collection. To get started, use the after method on a validator instance:1$validator = Validator::make(...); 2 3$validator->after(function ($validator) { 4 if ($this->somethingElseIs...
If you pass an object or collection of objects, the mailer will automatically use their email and name properties when determining the email's recipients, so make sure these attributes are available on your objects. Once you have specified your recipients, you may pass an instance of your mail...
支持的转换类型: integer , real , float , double , string , boolean , object , array , collection , date , datetime 和timestamp . 如果数据库有一个 JSON 或TEXT 字段类型包含了序列化 JSON, 可使用 array 转换, 将自动进行 序列化 和反序列化 . class User extends Model { /** * 应该被转化...
class User extends Eloquent { public function newCollection(array $models = array()) { return new CustomCollection($models); }}访问器和调整器Eloquent 为获取和设置模型的属性提供了一种便利的方式。简单的在模型中定义一个 getFooAttribute 函数声明一个访问器。记住,这个函数应该遵循 "camel-casing" ...
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...