Setting the decimal point in php

[gayle]

Hello php group,
I have just joined. My usual group is sitemaps and a dozen other
forums, but nobody seems to be able to come up with exactly the advice
I am after. I just know there has to be a simple answer. I have a
script that calculates everything nicely and feeds the data into my
database after first showing the result on the screen etc etc. All
works nicely except that it calculates everything to the finest decimal
place. What I don't know is how to command it to round the decimal
places to two. I've tried a number of things, taken a number of
suggestions; but I won't mention them here as they might confuse the
issue. The main thing is that I need to tell the script to operate on
an unknown number with the function of rounding to two places. Let's
say the result is $totalname; can anybody suggest how to command that
$totalname has only 2 decimal places?
Thanks for listening.
Gayle

[chotiwallah]

gayle wrote:

Hello php group,
I have just joined. My usual group is sitemaps and a dozen other
forums, but nobody seems to be able to come up with exactly the advice
I am after. I just know there has to be a simple answer. I have a
script that calculates everything nicely and feeds the data into my
database after first showing the result on the screen etc etc. All
works nicely except that it calculates everything to the finest decimal
place. What I don't know is how to command it to round the decimal
places to two. I've tried a number of things, taken a number of
suggestions; but I won't mention them here as they might confuse the
issue. The main thing is that I need to tell the script to operate on
an unknown number with the function of rounding to two places. Let's
say the result is $totalname; can anybody suggest how to command that
$totalname has only 2 decimal places?
Thanks for listening.
Gayle

straight from the manual:

echo round(1.95583, 2); // 1.96

micha

[gayle]

Thanks Micha,
I saw that, but it does not quite fit the script. It seems to require
already knowing the number. I also tried echo round (',',2); but no
good. I guess people would need to see the script for it to make any
sense. Too many unique variables.
Gayle

[Andy Jeffries]

gayle wrote:

Thanks Micha,
I saw that, but it does not quite fit the script. It seems to require
already knowing the number. I also tried echo round (',',2); but no
good. I guess people would need to see the script for it to make any
sense. Too many unique variables.

Your call to round doesn't make sense, you can't round a string to two
decimal places.

Do you mean you want to format a number with , at the thousand point and
two decimal places?

If so do:

echo number_format("1203.120321", 2);

Cheers,
Andy

[Ian B]

$num=1.9654321;
..
..
..
echo round($num,2);

Ian