PHP log10() Function
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));
?>
Run example »
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
