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PHP floor () function

PHP Math Reference PHP Math Reference

Examples

Rounded 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));
?>

Running instance »

Definition and Usage

floor () function is rounded down to the nearest integer.

Tip: To rounded up to the nearest integer, see ceil () function.

Tip: For floating-point rounding, please see round () function.


grammar

floor( number );

参数 描述
number 必需。规定需向下取整的值。

technical details

return value: Rounded down to the nearest whole number.
Return type: Float
PHP version: 4+


PHP Math Reference PHP Math Reference