Re: Unexplained Issue Using Regex

Nitsan Bin-Nun schreef: > Hi lista, > > I have been trying to figure this out for the last couple of hours but I'm > lack of luck. > Take a look at these regex's, the string that was inputed into the > preg_replace (using Uis modificators) and the results: > (the lists have correspondence to each other) > > ORIGINAL STRING > ---- > > http://www.zshare.net/video/541070871c7a8d9c > http://www.guba.com/watch/2000821351 > http://www.veoh.com/videos/v4609719YfsCFpf > > > REGEX USED (with Uis modificators) > ---- > http:\/\/(www\.|)zshare\.net\/video\/([^\/]+) $3 > http:\/\/(www\.|)guba\.com\/watch\/([0-9]+) $3 > http:\/\/(www\.|)veoh\.com\/videos\/([^\/]+) > > THE RETURNED STRING > ---- > 41070871c7a8d9c > 000821351 > 4609719YfsCFpf > > If you will go through this carefully you will notice that the first > character of each matching group is being deleted. > The regex's and the replacements string are being fetched from the database > (mysql) and goes straight to the preg_replace function with the original > string. > > I have no idea why this happens. > I'm looking forward for your opinions and suggestions. php -r ' var_dump(preg_replace("#http:\/\/(www\.|)zshare\.net\/video\/([^\/]+)#Ui", "\\2", "http://www.zshare.net/video/541070871c7a8d9c")); ' string(16) "541070871c7a8d9c" given the above test I don't see the problem with the regexp (but you don't actually show the code so it's hard to tell), I'd probably look else where for the char munching culprit. > > Regards, > Nitsan >