Laravel Collection Public API: has

has($key)

The has method is used to determine if a item exists in the collection based on a given $key. The has method returns true if the item exists and false if it does not.

The following example demonstrates the usage of the has method:

 1<?php
 2 
 3use Illuminate\Support\Collection;
 4 
 5// Create a new collection instance.
 6$collection = new Collection([
 7    'first'  => 'I am first',
 8    'second' => 'I am second'
 9]);
10 
11// true
12$collection->has('first');
13 
14// true
15$collection->has('second');
16 
17// false
18$collection->has('third');

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