has

判断集合中是否存在给定的键。

$collection = collect(['account_id' => 1, 'product' => 'Desk', 'amount' => 5]);

$collection->has('product'); // true
$collection->has(['product', 'amount']); // true
$collection->has(['amount', 'price']); // false

相关方法

• hasAny
• search
• contains
• doesntContain
• containsStrict
• containsOneItem