php rounding numbers

Question

Actually, "rounding" may not be the best name to describe what I'm looking to do.

I want to round only floats that have zeros after the decimal point: ".00"

I don't want to display any decimal numbers if there are zeros after the decimal point. Normally I'd just look for ".00" in the variable, and if it has what I'm looking for I just strip it out. However, there are a few instances that the decimal might be longer than 2 places. like: 45.000 or 56.0000

I didn't want to mess with any regex on this if there was a php function that stripped out the extra zeros, if they exist.

Clarification: I am assuming that you are trying to read in a value, then write the value with as few trailing 0s as possible. Is this correct? — ctrl-alt-delor
– ctrl-alt-delor, Commented May 17, 2011 at 21:29

Mr47 · Accepted Answer · 2011-05-17 20:37:58Z

2

Using floatval() might be the solution to your problem.

answered May 17, 2011 at 20:37

Mr47

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1 Comment

coffeemonitor Over a year ago

This does it. Seems I need to convert the string to an int or float. I didn't think that it was in a string and needed conversion.

score 0 · Accepted Answer · 2011-05-17 20:48:43Z

0

Use round($f,2);
http://php.net/manual/en/function.round.php

For that genius who downvoted: http://codepad.org/2bBA5UpL

edited May 17, 2011 at 20:48

answered May 17, 2011 at 20:40

user680786

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