log() function in PHP

PHPProgrammingServer Side Programming

The log() function Returns the natural logarithm of a number.

Syntax

log(num, base)

Parameters

  • num − The value for which you want to calculate the logarithm

  • base − The logarithmic base

Return

The log() function Returns the natural logarithm of a number.

Example

 Live Demo

<?php
   echo(log(1));
?>

Output

0

Example

Let us see another example −

 Live Demo

<?php
   echo(log(0));
?>

Output

-INF

Example

Let us see another example −

 Live Demo

<?php
   echo(log(10));
   echo(log(2.7));
?>

Output

2.3025850929940.99325177301028
raja
Published on 09-Nov-2018 07:09:39
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