Laravel 5 Message Bags: Getting all of the Message Keys With keys

The keys method is used to retrieve all of keys stored inside the MessageBag instance.

#Signature

The signature of the keys method is:

1public function keys();

#Example Use

The following code example demonstrate the usage of the keys method:

 1use Illuminate\Support\MessageBag;
 2 
 3// Create a new MessageBag instance.
 4$messageBag = new MessageBag;
 5 
 6// Add items to the MessageBag
 7$messageBag->add('first',  'First Message');
 8$messageBag->add('second', 'Second Message');
 9$messageBag->add('third',  'Third Message');
10$messageBag->add('fourth', 'Fourth Message');
11 
12// Get the MessageBag keys.
13$keys = $messageBag->keys();

After the above code has executed, the $keys variable will be an array that contains a value similar to the following output:

1array
2  0 => string 'first'
3  1 => string 'second'
4  2 => string 'third'
5  3 => string 'fourth'

It can be seen that the results contain only the keys that were added to the MessageBag instance.

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