TalkPHP - View Single Post

xenon · 08-22-2008, 08:19 PM

$1 says "just copy the first captured group into a variable called $1", which is the first reference of the captured group, so you don't have to copy and paste that expression every time you need to use it. Every groups that are captured (are between paranthesis), are numbered, in the order they match, starting from 1.

08-22-2008, 08:19 PM	#4 (permalink)
xenon The Frequenter Join Date: Dec 2007 Location: Bucharest, Romania Posts: 438 Thanks: 3	$1 says "just copy the first captured group into a variable called $1", which is the first reference of the captured group, so you don't have to copy and paste that expression every time you need to use it. Every groups that are captured (are between paranthesis), are numbered, in the order they match, starting from 1. __________________ I have optimistic thoughts, even though sometimes (if not always) life's a bitch.