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How do you convert a collection to JSON in Laravel?

How do you convert a collection to JSON in Laravel?

In Laravel, converting a collection to JSON is straightforward. You can use the toJson() method to manually convert a collection to JSON, or simply return the collection in a response, and Laravel will handle the conversion automatically. Here’s how:

Example 1: Using toJson() Method

The toJson() method converts the collection into a JSON string that you can use or manipulate.

Example

<?php
$collection = collect(['name' => 'John', 'age' => 30]);
$json = $collection->toJson();  // Converts the collection to a JSON string
?>

This method is useful when you need to store or pass the JSON as a string variable rather than directly sending it in a response.

Example 2: Returning Collection in a JSON Response

Laravel makes it easy to return JSON directly from your controller. When you return a collection within a response()->json() call, Laravel automatically handles the conversion:

Example

<?php
return response()->json($collection);  // Automatically converts the collection to JSON
?>

Alternatively, Laravel will automatically convert the collection to JSON even if you return it directly from a controller:

Example

<?php
return $collection;  // Laravel converts the collection to JSON automatically
?>

return $collection; // Laravel converts the collection to JSON automatically

Example

<?php
return $collection;  // Laravel converts the collection to JSON automatically
?>

Output

Both approaches will generate a JSON response:

Example

{
    "name": "John",
    "age": 30
}

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