PHP Tutorial - PHP floor() Function
Definition
The floor() function rounds a floating-point number to the nearest integer below its current value.
Syntax
PHP floor() Function has the following syntax.
float floor ( float number ) Parameter
| Parameter | Is Required | Description |
|---|---|---|
| number | Required. | Value to round down |
If you provide an integer, nothing will happen.
Return
| Item | Value |
|---|---|
| Return Value | The value rounded down to the nearest integer |
| Return Type | Float |
Note
To round a number UP to the nearest integer, use ceil() function.
To round a floating-point number, use round() function.
Example 1
<?PHP//from w w w. jav a 2s .c om
$number = floor(11.1); // 11
print $number;
print "\n";
$number = floor(11.9); // 11
print $number;
print "\n";
$number = floor(11); // 11
print $number;
print "\n";
echo(floor(0.60) . "\n");
echo(floor(0.40) . "\n");
echo(floor(5) . "\n");
echo(floor(5.1) . "\n");
echo(floor(-5.1) . "\n");
echo(floor(-5.9));
?>
For negative float value
floor() rounds down, for example, floor(-3.5) becomes -4.
The code above generates the following result.
