$collection= collect(['name' => 'taylor', 'framework' => 'laravel']);$value=$collection->get('name');//taylor#可以选择性地传递默认值作为第二个参数:$collection= collect(['name' => 'taylor', 'framework' => 'laravel']);$value=
$collection = collect([ 'one' => 10, 'two' => 20, 'three' => 30, 'four' => 40, 'five' => 50, ]); $diff = $collection->diffKeys([ 'two' => 2, 'four' => 4, 'six' => 6, 'eight' => 8, ]); $diff->
★ Laravel Collection Merge | How to Merge Two Eloquent Collection?Read Now → ★ Laravel Collection Unique | Remove Duplicates from Collection LaravelRead Now → ★ Laravel Collection Search Method ExampleRead Now → ★ Laravel Change Date Format using Carbon ExampleRead Now → ★ How to Get La...
技巧:这个方法的行为当使用Eloquent Collections时会被重写。diffAssoc() {#collection-method}diffAssoc 方法与另外一个集合或基于 PHP 数组的键 / 值对(keys and values)进行比较。这个方法将会返回原集合不存在于指定集合的键 / 值对:$collection = collect...
2 $collection->merge([1, 2, 3]); 3});Therefore, in previous releases of Laravel, passing a closure to the when or unless methods meant that the conditional operation would always execute, since a loose comparison against a closure object (or any other object) always evaluates to true. ...
Laravel 的集合 Collection简介Illuminate\Support\Collection 类提供了一个更具可读性的、更便于处理数组数据的封装。具体例子看下面的代码。我们使用了 collect 函数从数组中创建新的集合实例,对其中的每个元素运行 strtoupper 函数之后再移除所有的空元素:$...
如上面的代码示例,Collection 类支持链式调用,一般来说,每一个 Collection 方法会返回一个全新的 Collection 实例,你可以放心地进行链接调用。创建集合如上所述,collect 辅助函数会利用传入的数组生成一个新的 Illuminate\Support\Collection 实例。所以要创建一个集合就这么简单:$collection = collect([1, 2, 3]...
The diffKeys method compares the collection against another collection or a plain PHP array based on its keys. This method will return the key / value pairs in the original collection that are not present in the given collection:1$collection = collect([ 2 'one' => 10, 3 'two' => 20...
Example Laravel Collection #1: Example Laravel Collection #2: Example Laravel Collection #3: BottomLaravel collection merge method able us to merge the given array or collection to the original collection. This will help us if we have a functionality we want to connect to the existing collection...
$collection = collect(['pinux', 'php', null])->map(function ($name) { return strtoupper($name); }) ->reject(function ($name) { return empty($name); }); 1. 2. 3. 4. 5. 6. 上面的列子可以看出,Collection 类允许你链式调用其方法,以达到在底层数组上优雅地执行 ...