Laravel collection contains

Question

I'm using the Laravel contains method on a collection https://laravel.com/docs/5.3/collections#method-contains. But it does not work for me.

foreach ($this->options as $option) {     if($options->contains($option->id)) {         dd('test');     } } 

dd($options); looks like this:

Collection {#390   #items: array:1 [     0 => array:3 [       0 => array:7 [         "id" => 10         "slug" => "test"         "name" => "test"         "poll_id" => 4         "created_at" => "2016-11-12 20:42:42"         "updated_at" => "2016-11-12 20:42:42"         "votes" => []       ]       1 => array:7 [         "id" => 11         "slug" => "test-1"         "name" => "test"         "poll_id" => 4         "created_at" => "2016-11-12 20:42:42"         "updated_at" => "2016-11-12 20:42:42"         "votes" => []       ]       2 => array:7 [         "id" => 12         "slug" => "test-2"         "name" => "test"         "poll_id" => 4         "created_at" => "2016-11-12 20:42:42"         "updated_at" => "2016-11-12 20:42:42"         "votes" => []       ]     ]   ] } 

Result of dd($option->id); is 10.

What could be wrong? Or is there a better way?

Answer 1

You should pass a key / value pair to the contains method, which will determine if the given pair exists in the collection. Use contains() method in this way:

foreach ($this->options as $option) {   // Pass key inside contains method   if($option->contains('id', $option->id)) {       dd('test');   } }