deg2rad

Definition and usage

deg2rad() function converts angles to radians.

Example

Example 1

 <?php
echo deg2rad ( "30" ) ;
echo deg2rad ( "10" ) ;
echo deg2rad ( "1587" ) ;
echo deg2rad ( "70" ) ;
?>

Try it yourself

Example 2

 <?php
$deg = 180 ;
$rad = deg2rad ( $deg ) ;
echo "angle $deg equals radian $rad " ;
?>

Try it yourself

grammar

 deg2rad ( degree_number )

illustrate

This function converts degree_number from angle to radian.