[RESOLVED] Showing more numbers after decimal

[Mark_Nordstrom]

I got an issue.

Say I wanna do 20/60 in php and the result is 0.33 Well I want it to show the 3rd number after decimal so 0.333

I cant see to get to this work any ideas ?

[laserlight]

What have you tried? It should just be a matter of say, setting the precision in [man]round/man.

[Mark_Nordstrom]

I tried round and used round($row_name['ratio'],3); It dont work

[laserlight]

Let's try a simple test script:

<?php
$num = 20 / 60;
echo round($num, 3);
?>

[Protato]

$num = 20 / 60;
echo number_format($num, 3);

[laserlight]

number_format might be overkill here, and possibly even wrong. Consider:

$num = 200000 / 60;
echo number_format($num, 3);

[NogDog]

Nothing wrong with round(), but I'm a [sp]rintf() kind of guy. 🙂

printf("%.3f", 20 / 60);

[Mark_Nordstrom]

I got it guys thanks for all help. You code PHP for so long then take a break and you forget everything lol.
I just ended up doing round($row_name['loot]/$row_name['points'],3);

[Protato]

Wouldn't round in some scenarios not return three sig figs? with the 60 / 20 you still get the three, but if these numbers change and have fractions you may end up with it being rounded to a whole number, number_format will always retain the decimals. By wrong did you mean the comma potentially causing problems? It can be removed.

number_format($num, '.', '');

Sorry to sound argumentative, I'm trying to fish some knowledge out of you laserlight to better my understanding.

[laserlight]

Wouldn't round in some scenarios not return three sig figs?

That's right. In such a case, number_format() or printf() would be required.

By wrong did you mean the comma potentially causing problems? It can be removed.

Of course, but not in your example usage.

[Protato]

Thank you for taking the time to break it down for me, you guys really help put things in perspective.