How can the array structure be maintained when inserting new elements into an array in PHP?

When inserting new elements into an array in PHP, you can use the array_push() function to add elements to the end of the array while maintaining the array structure. This function appends one or more elements to the end of an array. It is a simple way to add elements to an array without worrying about maintaining the array structure manually.

// Example of maintaining array structure when inserting new elements
$array = [1, 2, 3, 4];

// Inserting new elements at the end of the array
array_push($array, 5, 6);

// Output the updated array
print_r($array);