floor
(PHP 4, PHP 5, PHP 7)
floor — Round 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 int. 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 ?>
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https://www.php.net/manual/en/function.floor.php