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

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

Output

3.1<br>9.7<br>

Let us see another example −

Example

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

Output

20<br>50<br>