W3Schools: PHP

W3Schools' lesson on PHP covered a variety of topics. It began with a basic overview of PHP, introducing syntax, variables, and basic commands such as echo and print. It then moved to using different data types such as strings, constants, operators, as well as control structurres like If/Else/ElseIf and Switch and loops such as While and For. It also described functions, including user-defined functions, and arrays and how to sort them. The tutorial concluded with a quiz, the result of which are displayed below.