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
?>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 |
Math Functions ceil Functions(Next higher integer) base_convert(): Convert number From any base to other
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