PHP is_finite() - Math Functions
What is is_finite Function?
Explanation
The "is_finite()" function finds whether a value is a legal finite number.
Syntax:
is_finite(x)
In the above syntax "x" is the number to be checked to find whether its a legal finite number.
Example :
<?php
echo is_finite(4);
echo is_finite(4000);
?>
Result :
1
1
In the above example both the numbers are finite numbers, so it returns "true", otherwise it returns nothing.