Published in Laravel

Laravel MessageBag Public API: keys

By John Koster

The keys method is used to retrieve all of keys stored inside the MessageBag instance. The following code example demonstrate the usage of the keys method:

 1<?php

 2

 3use Illuminate\Support\MessageBag;

 4

 5// Create a new MessageBag instance.

 6$messageBag = new MessageBag;

 7

 8// Add items to the MessageBag

 9$messageBag->add('first',  'First Message');

10$messageBag->add('second', 'Second Message');

11$messageBag->add('third',  'Third Message');

12$messageBag->add('fourth', 'Fourth Message');

13

14// Get the MessageBag keys.

15$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 (size=4)

2  0 => string 'first'  (length=5)

3  1 => string 'second' (length=6)

4  2 => string 'third'  (length=5)

5  3 => string 'fourth' (length=6)

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

#Continue Reading

This article is the start of a mini-series about Laravel's ErrorMessageBag component. Click through the rest of the articles to continue reading:

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