How to use log in PHP
This article describe about log() Function in PHP.
log() Function
This function returns the logarithm (base E ) of a number.
Syntax
| Parameter |
Description |
| x |
Specified a number. |
| base |
Optional. If the base parameter is specified, log() returns logbase x. |
Note: If the value of x is negative then return -1.#IND.
Example
<html>
<?php
echo(log(3.718) . "<br />");
echo(log(2) . "<br />");
echo(log(1) . "<br />");
echo(log(0) . "<br />");
echo(log(-1))
?>
</html> |
Output
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