PHP 8 Quick Scripting Reference: A Pocket Guide to PHP Web Scripting

© Mikael Olsson 2021

M. OlssonPHP 8 Quick Scripting Referencehttps://doi.org/10.1007/978-1-4842-6619-9_3

3. Operators

Mikael Olsson¹  

(1)

Hammarland, Finland

 

A numeric operator is a symbol that makes the script perform a specific mathematical or logical manipulation. The numeric operators can be grouped into five types: arithmetic, assignment, comparison, logical, and bitwise operators.

Arithmetic Operators

The arithmetic operators include the four basic arithmetic operations, as well as the modulus operator (%), which is used to obtain the division remainder.

$x = 4 + 2; // 6, addition

$x = 4 - 2; // 2, subtraction

$x = 4 * 2; // 8, multiplication

$x = 4 / 2; // 2, division

$x = 4 % 2; // 0, modulus (division remainder)

An exponentiation operator (**