deg2rad

(PHP 3 >= 3.0.4, PHP 4, PHP 5)

deg2rad -- Converts the number in degrees to the radian equivalent

Description

float deg2rad ( float number )

This function converts number from degrees to the radian equivalent.

Example 1. deg2rad() example

<?php

echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)

?>