Re: String format best practice

On Tue, March 29, 2005 1:27 pm, René Fournier said: > I need to output a Hex value, e.g.: > > 686E8AF8 > > In the following format: > > 68 6E 8A F8 > > In other words, separated by spaces. Now I realize there are a million > ways to do this, but I would like a suggestion on which you think is > the most efficient? Incidentally, I'm starting with a decimal value > (23602210718), so maybe sprintf would be a direct way? sprintf and "most efficient" rarely belong in the same sentence. :-) I believe this is going to "win" almost any efficiency test, and is reasonably self-documenting/clear: $dec = 23602210718; $hex = dechex($dec); echo implode(' ', chunk_split($hex, 2)); Note that dechex only supports numbers up to 0xFFFFFFFF In older PHP versions, I believe the limit was lower than that. 0x7FFFFFFF perhaps, based on the user notes. -- Like Music? http://l-i-e.com/artists.htm