How to add elements to an empty array in PHP?

Question

If I define an array in PHP such as (I don't define its size): <!-- language: lang-php --> $cart = array(); Do I simply add elements to it using the following? <!-- language: lang-php --> $cart[] = 13; $cart[] = "foo"; $cart[] = obj; Don't arrays in PHP have an add method, for example, `cart.add(13)`?

Answer 1

Arrays in many languages are basic data structure to hold the collections. And all these languages (PHP, Java, Python, etc.) support adding elements to the array using the subscript notation. [0] - first element [1] second element and so on.

Only when you write higher level methods/classes, this subscript notation is hidden from the users and some methods such as add( ) delete() append() etc. are provided.

PHP also offers Associative arrays here the index elements can be strings. That is cool feature in PHP.