Keywords / Programming languages, class

Tags: Programming languages, class

When to use CSS ids and when CSS classes instead?

When to use CSS ids and when CSS classes instead?
At first glance, the use of classes and ids is almost identical: both can assign CSS properties with needed values to change the appearance of HTML document. But, under what circumstances can we make better use of classes, and under what ids?

Classes and objects in PHP

Classes and objects in PHP
Class - is a basic concept in object-oriented programming (OOP).