When a MessageBag instance is cast into a string, its JSON representation is returned as the result. Internally this is accomplished by returning the result of the toJson method.

 1<?php
 2 
 3use Illuminate\Support\MessageBag;
 4 
 5// Create a new MessageBag instance.
 6$messageBag = new MessageBag([
 7    'first' => ['The first message']
 8]);
 9 
10// Cast the MessageBag into a string.
11$stringValue = (string) $messageBag;

After the above code executes, the $stringValue variable would contain the following value:

1{"first":["The first message"]}

#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:

• An Introduction to Laravel Message Bags
• Laravel MessageBag Public API: add
• Laravel MessageBag Public API: all
• Laravel MessageBag Public API: any
• Laravel MessageBag Public API: count
• Laravel MessageBag Public API: first
• Laravel MessageBag Public API: get
• Laravel MessageBag Public API: getFormat
• Laravel MessageBag Public API: getMessageBag
• Laravel MessageBag Public API: getMessages
• Laravel MessageBag Public API: has
• Laravel MessageBag Public API: isEmpty
• Laravel MessageBag Public API: jsonSerialize
• Laravel MessageBag Public API: keys
• Laravel MessageBag Public API: merge
• Laravel MessageBag Public API: setFormat
• Laravel MessageBag Public API: toArray
• Laravel MessageBag Public API: toJson
• Laravel MessageBag Public API: __toString

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