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PHP Manual [floor]

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PHP Manual || Math Functions

(PHP 4, PHP 5, PHP 7)

floorRound fractions down

Description

floor ( float $value ) : float

Returns the next lowest integer value (as float) by rounding down value if necessary.

Parameters

value

The numeric value to round

Return Values

value 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. This function returns FALSE in case of an error (e.g. passing an array).

Examples

Example #1 floor() example

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

See Also



PHP Manual || Math Functions