printf("how to?") question

[Anon]

I have a $total price which is an integer.

I now want to print this is a particular format.

I.e.
12999
Should become
£12,999

Any ideas on how to use printf() or are there predefined functions ready for this?

[Anon]

There is an example showing how to do this with printf / sprintf in the PHP annotated manual at www.php.net. However, you would be better off using the number_format() function, which is designed for this purpose.