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PHP pow() Function

< PHP Math Reference

Example

Examples of pow():

<?php
echo(pow(2,4) . "<br>");
echo(pow(-2,4) . "<br>");
echo(pow(-2,-4) . "<br>");
echo(pow(-2,-3.2));
?>

Definition and Usage

The pow() function returns x raised to the power of y.

Syntax

pow(x,y);

Parameter	Description
x	Required. Specifies the base to use
y	Required. Specifies the exponent

Technical Details

Return Value:	x raised to the power of y
Return Type:	Integer if possible, Float otherwise
PHP Version:	4+
PHP Changelog:	PHP 4.0.6: Will now return integer if possible. Earlier it only returned float PHP 4.2.0: No warning is issued on errors

< PHP Math Reference