PHP floor() function

Complete PHP Math Reference

Definition and Usage

The floor() function returns the value of a number rounded DOWNWARDS to the nearest integer.

Syntax

floor(x)

Example

In this example we will use the floor() function on different numbers:

<?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))
?>

The output of the code above will be:

0
0
5
5
-6
-6

Complete PHP Math Reference

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