What are some alternative methods to unset() for removing elements from a JSON array in PHP?

When working with JSON arrays in PHP, the unset() function can be used to remove elements. However, there are alternative methods to achieve the same result. One common approach is to decode the JSON string into a PHP array, manipulate the array by removing the desired element, and then encode the array back into a JSON string. 

// Sample JSON array
$jsonArray = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}, {"name": "Alice", "age": 35}]';

// Decode JSON array into a PHP array
$array = json_decode($jsonArray, true);

// Remove element at index 1
unset($array[1]);

// Encode the modified array back into a JSON string
$jsonArray = json_encode($array);

echo $jsonArray;

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