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PHP floor() Function

< PHP Math Reference

Example

Round numbers down to the nearest integer:

<?php
echo(floor(0.60) . "<br>");
echo(floor(0.40) . "<br>");
echo(floor(5) . "<br>");
echo(floor(5.1) . "<br>");
echo(floor(-5.1) . "<br>");
echo(floor(-5.9));
?>

Definition and Usage

The floor() function rounds a number DOWN to the nearest integer, if necessary.

Tip: To round a number UP to the nearest integer, look at the ceil() function.

Tip: To round a floating-point number, look at the round() function.

Syntax

floor(number);

Parameter	Description
number	Required. Specifies the value to round down

Technical Details

Return Value:	The value rounded down to the nearest integer
Return Type:	Float
PHP Version:	4+

< PHP Math Reference