Never use deg2rad() in loops, use $rad = ($deg * M_PI / 180) instead which is faster!
deg2rad
(PHP 4, PHP 5, PHP 7)
deg2rad — Converts the number in degrees to the radian equivalent
Description
deg2rad
( float
$number
) : float
This function converts number from degrees
to the radian equivalent.
Parameters
-
number -
Angular value in degrees
Return Values
The radian equivalent of number
Examples
Example #1 deg2rad() example
<?php
echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)
?>
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User Contributed Notes 1 note
christian dot ubu at NOSPAMHERE dot gmail dot com ¶
10 years ago
