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PHP Quiz PHP CertificatePHP deg2rad() Function
Complete PHP Math Reference
Definition and Usage
The deg2rad() function converts a degree to its radian number.
Syntax
deg2rad(degree_number)
| Parameter | Description |
|---|---|
| degree_number | Required. Specifies the degree to convert |
Example 1
<?php
echo deg2rad("30") . "<br />";
echo deg2rad("10") . "<br />";
echo deg2rad("1587") . "<br />";
echo deg2rad("70");
?>
echo deg2rad("30") . "<br />";
echo deg2rad("10") . "<br />";
echo deg2rad("1587") . "<br />";
echo deg2rad("70");
?>
The output of the code above will be:
0.523598775598
0.174532925199
27.6983752292
1.2217304764
0.174532925199
27.6983752292
1.2217304764
Example 2
<?php
$deg = 180;
$rad = deg2rad($deg);
echo "$deg degrees is equal to $rad radians";
?>
$deg = 180;
$rad = deg2rad($deg);
echo "$deg degrees is equal to $rad radians";
?>
The output of the code above will be:
180 degrees is equal to 3.14159265359 radians
Complete PHP Math Reference
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