A standard editor would, at the maximum, provide basic text coloring based on the various keywords. Anyway, without hurting the feelings of editors, PhpStorm provides you with additional options besides providing you the standard code completion system.

There is the smart type completion that not only completes your code, but also finds and suggests the most eligible match for your code. By eligible, it means that the code hint matches the current context (the invoking object). This is particularly useful in cases in which you have honestly stuck to the Software Engineering principle of Inheritance.

Code completion settings in PhpStorm are available at File | Settings | Editor | Code Completion, as shown in the following screenshot:

If you have a lot of items for PhpStorm to look up, for example, members of your created class, you can order PhpStorm to provide you with hints in lexicographical order.

To turn this feature on, you need to select the checkbox adjacent to Sort lookup items lexicographically. The following screenshot shows the code completion feature:

Code completion at your convenience! I hope this make sense to you.