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PHP Math Reference : Convert degrees to radians
The deg2rad() function converts a degree value to a radian value.
Parameter | Description |
---|---|
number | Required. Specifies the degree to convert |
Return Value: | The radian equivalent of number |
---|---|
Return Type: | Float |
PHP Version: | 4+ |
Convert a degree into its radian equivalent:
<?php
$deg = 180;
$rad = deg2rad($deg);
echo "$deg degrees is equal to $rad radians.";
?>
❮ PHP Math Reference