Is it necessary to use loops when working with json_encode in PHP?

When working with json_encode in PHP, it is not always necessary to use loops. If you have a simple array or object that you want to encode into JSON, you can use json_encode directly without the need for loops. However, if you have nested arrays or objects, you may need to use loops to iterate through the data and encode it properly. 

$data = array(
    'name' => 'John Doe',
    'age' => 30,
    'email' => 'johndoe@example.com'
);

$json = json_encode($data);

echo $json;

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