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PHP log10() Function

< PHP Math Reference

Example

Return the base-10 logarithm of different numbers:

<?php
echo(log10(2.7183) . "<br>");
echo(log10(2) . "<br>");
echo(log10(1) . "<br>");
echo(log10(0));
?>

Definition and Usage

The log10() function returns the base-10 logarithm of a number.

Syntax

log10(number);

Parameter	Description
number	Required. Specifies the value to calculate the logarithm for

Technical Details

Return Value:	The base-10 logarithm of number
Return Type:	Float
PHP Version:	4+

< PHP Math Reference