# PHP Operators Arithmetic Operators

#### Arithmetic Operators

With PHP's familiar arithmetic operators, adding, subtraction, multiplication, division, exponentiation, and modulus are all possible.

The arithmetic operators require numeric values. When you employ an arithmetic operator on a non-numeric value, it first transforms it to a numeric value before doing the calculation.

#### The arithmetic operators in PHP are shown in the table below:

Operator Name Example Description
+ Addition \$x * \$y Get the total of \$x and \$y.
- Subtraction \$x – \$y Calculate the difference between \$x and \$y.
* Multiplication \$x * \$y Return the \$x and \$y product.
/ Division \$x / \$y Return the \$x and \$y quotient.
% Modulo \$x % \$y Return \$x divided by \$y as a remainder.
** Exponentiation \$x ** \$y Raise \$x to the \$y'th power and return the result.

#### PHP arithmetic operator examples

The arithmetic operators are used in the following example:

<?php \$x = 20; \$y = 10; // add, subtract, and multiplication operators demo echo \$x + \$y; // 30 echo \$x - \$y; // 10 echo \$x * \$y; // 200 // division operator demo \$z = \$x / \$y; // modulo demo \$y = 15; echo \$x % \$y; // 5 ?>