PHP deg2rad() Function
Definition and Usage
The deg2rad() function converts degrees to radians.
Syntax
deg2rad(degree_number)
| Parameter | Description |
|---|---|
| degree_number | Required. Specifies the angle to be converted. |
Description
This function converts degree_number Convert degrees to radians.
Instance
Example 1
<?php
echo deg2rad("30");
echo deg2rad("10");
echo deg2rad("1587");
echo deg2rad("70");
?>
Output:
0.523598775598 0.174532925199 27.6983752292 1.2217304764
Example 2
<?php $deg = 180; $rad = deg2rad($deg); echo "Angle $deg equals radians $rad"; ?>
Output:
180 degrees equals 3.14159265359 radians
