floor

    (PHP 4, PHP 5, PHP 7, PHP 8)

    floor — Round fractions down

    Description

    floor(int|float$num): float

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

    Parameters

    num

    The numeric value to round

    Return Values

    num rounded to the next lowest integer. The return value of floor() is still of type float.

    Changelog

    VersionDescription
    8.0.0num no longer accepts internal objects which support numeric conversion.

    Examples

    Example #1 floor() example

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

    See Also

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