How to Effectively Convert PHP Objects into Arrays?

How to Convert an Object to an Array

Single-Dimensional Arrays

For single-dimensional arrays, you can utilize either casting or the get_object_vars function.

Casting:

$array = (array) $object;

get_object_vars:

$array = get_object_vars($object);

While both methods convert an object to an array, they exhibit subtle differences. get_object_vars only returns publicly accessible properties, unless called within the object's scope. Casting, however, preserves all members, including private and protected ones.

Multi-Dimensional Arrays

For multi-dimensional arrays, you can employ various approaches.

JSON Encoding and Decoding:

If your object can be encoded as JSON, you can use PHP's native JSON functions:

$array = json_decode(json_encode($object), true);

This method doesn't include private and protected members and is not suitable for objects containing non-JSON-encodable data.

Recursive Function:

The following function recursively converts an object to an array, including private and protected members:

function objectToArray($object) {
    if(!is_object($object) && !is_array($object))
        return $object;

    return array_map('objectToArray', (array) $object);
}

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