Re: [PHP] How do I get the result of a Division to 2 decimal places?

[Marek Kilimajer]

It is not mentioned in the manual, but it seems dec_point cannot be 
empty. If it is empty, default (.) is taken.

Jay Blanchard wrote:
[snip]
I am dividing a number by another number and printing the result to the
screen. How can I ensure that the number is rounded up to 2 decimal
places?
[/snip]
Why others never test these things I'll never know...but here is a small
test you can run....
<?php

/*
** rounding / number format test
*/
$number = 12.2345;

echo number_format($number, 4, '', ',')."\n";
echo number_format($number, 3, '', ',')."\n";
echo number_format($number, 2, '', ',')."\n";
echo "\n";
echo round($number, 4)."\n";
echo round($number, 3)."\n";
echo round($number, 2)."\n";
?>
The results ....

12.2345
12.235
12.23
12.2345
12.235
12.23
Interesting, no? It would appear that under PHP4.2.1 on a test server
that number_format() exhibits the same behaviour as round().
Have a pleasant and productive day.

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