Quick PHP question

[JeremyR]

I've got some simple math code that rounds numbers to the second decimal place. ( $x + $y) = $z round($z, 2)

when it rounds to a number with a zero in the second decimal place it doesn't pad it. How do i fix that? I want the zero to stay on the end.

IE: 5.204 would round to 5.20 but the code drops the last 0 and displays 5.2

Thanks for you help!

[imabluesman2]

Padding is for strings.

But I googled it for you:

http://www.htmlite.com/php011.php

all about formatting numbers.

Did you try casting the variable as a float?

[gwyneth]

Originally Posted by imabluesman2

Padding is for strings.

But I googled it for you:

http://www.htmlite.com/php011.php

all about formatting numbers.

That page's advice ends up having the same problem in one of its last examples because it uses padding.

Originally Posted by JeremyR

I've got some simple math code that rounds numbers to the second decimal place. ( $x + $y) = $z round($z, 2)

when it rounds to a number with a zero in the second decimal place it doesn't pad it. How do i fix that? I want the zero to stay on the end.

IE: 5.204 would round to 5.20 but the code drops the last 0 and displays 5.2

Thanks for you help!

Originally Posted by GatorZach

Did you try casting the variable as a float?

As Zach suggests, if you want to treat the variable as a number, you need to do this. Info at PHP: Type Juggling - Manual.

But if yours is the most common reason for showing the zero with two decimal places--to display U.S. money quantities--you could instead use PHP: money_format - Manual which in my limited experience is the best way to deal with money stuff. The variable stays a string, displays correctly, and is sort of the PHP equivalent of the spreadsheet and database vartype "money". Remember, if you do this, you MUST specify a valid locale. The linked manual page tells all.

[fanfavorite]

If you are working with money as the rounded number use money_format or if you are working with regular numbers use number_format.

[imabluesman2]

Originally Posted by gwyneth

That page's advice ends up having the same problem in one of its last examples because it uses padding.

The example of printf () does exactly what JeremyR wants, I trust he's smart enough not to use the round (or abs) functions since those gave him the problem in the first place:

 <?php
$first_number = 10;
$second_number = 3;
$total_sum = $first_number + $second_number;
printf ("%01.2f", $total_sum);
?>

Outcome :

13.00