deg2rad

(PHP 4, PHP 5, PHP 7)

Converts the number in degrees to the radian equivalent

float deg2rad ( float $number )

This function converts number from degrees to the radian equivalent.

Parameters:

number

Angular value in degrees

Returns:

The radian equivalent of number

Examples:

deg2rad() example

<?php
 
echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)
 
?>