Never use deg2rad() in loops, use $rad = ($deg * M_PI / 180) instead which is faster!
deg2rad
(PHP 4, PHP 5, PHP 7, PHP 8)
deg2rad — Converts the number in degrees to the radian equivalent
Description
This function converts num from degrees
to the radian equivalent.
Parameters
-
num -
Angular value in degrees
Return Values
The radian equivalent of num
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 ¶
15 years ago
