PHP: pow() function
Description
The pow() function raises the first number to the power of the second number.
Version:
(PHP 4 and above)
Syntax:
pow(a,b)
Parameters:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| a | The first number or base number to use. | Required | Float/integer |
| b | The second number or the exponent. | Required | Float/integer |
Return value:
The result of raising a to the power of b.
Value Type: Float/integer
Pictorial Presentation
Example:
<?php
echo pow(7,3) . '<br>';
echo pow(2,3) . '<br>';
echo pow(-2,3) . '<br>';
echo pow(-2,-3) . '<br>';
echo pow(-2,-3.2) . '<br>';
?>
Output:
343 8 -8 -0.125 NAN
View the example in the browser
See also