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PHP Quiz PHP CertificatePHP is_finite() Function
Complete PHP Math Reference
Definition and Usage
The is_finite() function returns true if the specified value is a finite number, otherwise it returns nothing.
The value is finite if it is within the allowed range for a PHP float on this platform.
Syntax
is_finite(x)
| Parameter | Description |
|---|---|
| x | Required. The value to check |
Example
<?php
echo is_finite(2) . "<br />";
echo is_finite(log(0)) . "<br />";
echo is_finite(2000);
?>
echo is_finite(2) . "<br />";
echo is_finite(log(0)) . "<br />";
echo is_finite(2000);
?>
The output of the code above will be:
1
1
1
Complete PHP Math Reference
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