It checks whether a value is a legal infinite number
Example
<?php
echo is_infinite(log(0));
?>
Output
1
Example
<?php
echo is_infinite(log(0));
?>
Output
1
Example
<?php
echo is_finite(2000);
?>
Output
1
Example
<?php
echo hypot(1,7);
?>
Output
7.0710678118655
Example
<?php
echo hexdec(17);
?>
Output
23
Example
<?php
echo getrandmax();
?>
Output
2147483647
Example
<?php
echo fmod(4,7);
?>
Output
4
Example
<?php
echo floor(1.7);
?>
Output
1
Example
<?php
echo expm1(17);
?>
Output
24154952.753575
Example
<?php
echo exp(17);
?>
Output
24154952.753575
Example
<?php
echo deg2rad(45);
?>
Output
0.78539816339745