floor(): Lowest nearest integer of a number
<?Php
echo floor(2.7).'<br>'; // Output 2
echo floor(2.4).'<br>'; // Output 2
echo floor(2.5).'<br>'; // Output 2
echo floor(-10.8).'<br>'; // Output -11
echo floor(-10.3).'<br>'; // Output -11
echo floor(-10.5).'<br>'; // Output -11
?>
floor() function returns the highest integer lower than the given number or the nearest integer ( on lower side ) of the number.
Here is a comparison between ceil(), floor() and round() function. For different input numbers we will get different values by using these functions.
Value | Floor() | ceil() | round() |
2.7 | 2 | 3 | 3 |
2.4 | 2 | 3 | 2 |
2.5 | 2 | 3 | 3 |
2.48 | 2 | 3 | 2 |
2.62 | 2 | 3 | 3 |
2 | 2 | 2 | 2 |
-8.7 | -9 | -8 | -9 |
-8.5 | -9 | -8 | -9 |
-8.3 | -9 | -8 | -8 |
-8.49 | -9 | -8 | -8 |
-8.61 | -9 | -8 | -9 |
-8 | -8 | -8 | -8 |
Note that there is no point is using ceil() or floor() functions on integers directly. ( we will get the same value )
← Math Functions
←ceil Functions(Next higher integer)
base_convert(): Convert number From any base to other →
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