Re: not sure why regex is doing this

From: Date: Fri, 09 Jan 2004 17:43:58 +0000
Subject: Re: not sure why regex is doing this
References: 1  Groups: php.general 
Request: Send a blank email to php-general+get-174147@lists.php.net to get a copy of this message
Hi again, I am not sure, that it is the clearest way, how to do it, but I've tried this: <? $query="(4536,'golf tournament management',430,,,,0,0), (1434,'Premium golf balls',,,,,,,,0),"; while (eregi(',\s*,',$query)): $query = preg_replace('/,\s*,/',',NULL,', $query, -1); endwhile; echo $query; ?> As you can see, I've added more ","s to your string to try, if it works good and it seems, that yes... PJ "Craig" <php@lonsbury.com> píse v diskusním príspevku news:IBELIEPEJMOIMBCMOCLJAEOCCGAA.php@lonsbury.com... > Hi, > > I have a text file that I have to parse and insert into a db. > these are a couple of sample lines (they are part of the > variable $query) > > (4536,'golf tournament management',430,0,0), > (1434,'Premium golf balls',,,0), > > I have to replace the blank entries (,,) with NULLs, > and I am using this regex: > $query = preg_replace('/,\s*,/',',NULL,', $query, -1); > > after this line, only ONE of the ,, sets is replaced > by ,NULL, like this: > (4536,'golf tournament management',430,0,0), > (1434,'Premium golf balls',NULL,,0), > > So, my problem is that I have to run the regex twice to > replace both sets of ,, with ,NULL, and I really don't > want to do that. Why isn't it getting them both with the > first regex, and how should I modify it to catch them > both? > > TIA, > Craig

« previous php.general (#174147) next »