What are the differences between using array_push and += to add elements to an array in PHP?

When adding elements to an array in PHP, using array_push() is a function specifically designed for that purpose, while using += is a shorthand way of concatenating arrays. The main difference is that array_push() adds elements to the end of the array, while += concatenates arrays, potentially creating a multidimensional array. It is important to choose the appropriate method based on the desired outcome.

// Using array_push()
$myArray = array();
array_push($myArray, "element1", "element2", "element3");

// Using +=
$myArray = array();
$myArray += ["element1", "element2", "element3"];