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Converts the number in degrees to the radian equivalent
Math Functions
PHP Manual

deg2rad

(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.

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)

?>

See Also


Math Functions
PHP Manual