PHP Manual: floor


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floor

(PHP 3, PHP 4, PHP 5)

floor -- Round fractions down

Description

float floor ( float value )

Returns the next lowest integer value by rounding down value if necessary.

Parameters

number

The numeric value to round

Return Values

arg rounded to the next lowest integer. The return value of floor() is still of type float because the value range of float is usually bigger than that of integer.

Examples

Example 1. floor() example

<?php
echo floor(4.3);   // 4
echo floor(9.999); // 9
echo floor(-3.14); // -4
?>

See Also

ceil()
round()