GoFuckYourself.com - Adult Webmaster Forum - php

GoFuckYourself.com - Adult Webmaster Forum (https://gfy.com/index.php)

- Fucking Around & Business Discussion (https://gfy.com/forumdisplay.php?f=26)

- - php - why does this happen? (https://gfy.com/showthread.php?t=151798)

cj-design

07-11-2003 11:08 AM

php - why does this happen?

PHP Code:


		
			
$rrp = "19.99";

$price = "14.99";

$saving = $rrp - $price;

$adding = $rrp + $price;



print "RRP: $rrp";

print "<p>";

print "Price: $price";

print "<P>";

print "Saving $saving";

print "<P>";

print "Added Together $adding";

Output:

RRP: 19.99
Price: 14.99

Saving 5

Added Together 34.98

What happened to the decimal places on the saving?

cezam

07-11-2003 11:13 AM

it's 5.00, so print strips the decimal places off.

printf is your friend, check manual.

jovigirl

07-11-2003 11:13 AM

i dont wanna buy zoom glasses

Brujah

07-11-2003 11:13 AM

it doesn't keep the format, you can use sprintf to do it.. instead of print.

$saving = sprintf( "%01.2f", $rrp - $price );

http://www.php.net/sprintf

rowan

07-11-2003 11:15 AM

Be careful using decimal places for pricing, you can get some strange effects with floats... probably better to calculate everything in cents internally (as a whole number), and then divide it by 100 to display it.

cj-design

07-11-2003 11:22 AM

cheers boys.

Thorin

07-11-2003 11:40 AM

Quote:

Originally posted by cj-design
What happened to the decimal places on the saving?

...

PHP/MySQL Programmer

Wow...

Freestyleman

07-11-2003 11:42 AM

Quote:

Originally posted by Thorin

Wow...

:1orglaugh :1orglaugh :1orglaugh

JamesK

07-11-2003 11:44 AM

Quote:

Originally posted by jovigirl
i dont wanna buy zoom glasses

HAHAHAHAAHAHHA

All times are GMT -7. The time now is 07:31 AM.