How to round a decimal number to nearest 5 or nearest 10 in php

Question

score 4 · Accepted Answer · answered Jul 22 '10 at 11:23

4

$new = round($num / 10, 0) * 10 rounds to nearest 10

answered Jul 22 '10 at 11:23

Dennis Haarbrink

3,738
1
27
54

If this is an optimal solution for your problem please flag the answer. – Dennis Haarbrink Jul 22 '10 at 11:50

score 1 · Answer 2 · answered Jul 22 '10 at 13:34

1

For the special case of nearest 10, you can use a negative precision:

$new = round($num, -1)

answered Jul 22 '10 at 13:34

pascal

3,287
1
17
35

score 1 · Answer 3 · answered Jul 22 '10 at 13:38

1

Multiply by 2, round to the nearest 10 (see pascal's answer), then divide by 2. Avoid dividing/multiplying by 5 to do this since float representation will interfere with the accuracy of your results.

answered Jul 22 '10 at 13:38

Ignacio Vazquez-Abrams

776,304
153
1,341
1,358

How to round a decimal number to nearest 5 or nearest 10 in php

3 Answers3

Related