The floor Function
The floor function rounds a fraction down.
This means that regardless of the digit
at the beginning of the fractional part, the fraction will still be rounded
without increasing the integer part by 1. For
example, 12.9 will be rounded to 12.
Syntax
phpfloor(number);
Example
Let's round 4.9 down:
php<?php
echo floor(4.9);
?>
Code execution result:
php4