abs() function in PHP

The abs() function returns the absolute value of a number.

Syntax

abs(num)

Parameters

• num − The number for which we want to get the absolute value. If the num is float, then the return type will be float, otherwise it is an integer.

Return

The abs() function returns the absolute value of the specified number.

Example

 Live Demo

<?php    echo(abs(3.1) . "<br>");    echo(abs(-9.7) . "<br>"); ?>

Output

3.1<br>9.7<br>

Let us see another example −

Example

 Live Demo

<?php    echo(abs(20) . "<br>");    echo(abs(-50) . "<br>"); ?>

Output

20<br>50<br>