What are the advantages of converting JSON strings to arrays in PHP before encoding them back to JSON for output?

When working with JSON data in PHP, converting JSON strings to arrays before encoding them back to JSON for output can make the data more accessible and easier to manipulate. This allows for easier data manipulation, such as adding, removing, or updating elements in the array before encoding it back to JSON. Additionally, working with arrays can provide better performance compared to manipulating JSON strings directly.

// Convert JSON string to array
$jsonString = '{"name": "John", "age": 30}';
$array = json_decode($jsonString, true);

// Manipulate the array
$array['age'] = 31;

// Encode the array back to JSON for output
$jsonOutput = json_encode($array);
echo $jsonOutput;