Are there any potential performance implications when using array_merge() to combine arrays with objects in PHP?

When using array_merge() to combine arrays with objects in PHP, there can be potential performance implications because the function may not handle objects as expected. To avoid any issues, it's recommended to convert the object to an array before merging it with other arrays. This can be done using the get_object_vars() function to retrieve the object's properties as an associative array.

// Example code snippet to merge arrays with objects in PHP
$object = new stdClass();
$object->key1 = 'value1';
$object->key2 = 'value2';

$array1 = ['key3' => 'value3', 'key4' => 'value4'];

// Convert object to array
$array2 = get_object_vars($object);

// Merge arrays
$mergedArray = array_merge($array1, $array2);

print_r($mergedArray);