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PHP Variable Handling
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PHP XML Parser
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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));
?>
Try it Yourself »
Definition and Usage
The log10() function returns the base-10 logarithm of a number.
Syntax
log10(
number);
Parameter Values
| 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
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