Re: More: Frustrating ?

From: Date: Mon, 18 Feb 2002 07:10:05 +0000
Subject: Re: More: Frustrating ?
References: 1 2 3  Groups: php.general 
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In article <3C70A662.DB9F84E@collegesherbrooke.qc.ca>, taylorjo@collegesherbrooke.qc.ca (Jtjohnston) wrote: > > > $where = "id like $id"; <snip> > So I do? > > $news = mysql_query("select * from ccl where '.$where.' order by AU desc"); > > or ? > > $news = mysql_query("select * from ccl where '.%$where%.' order by AU > desc"); Neither. Where $id==1, these would interpolate to: select * from ccl where '.id like 1.' order by AU desc select * from ccl where '.%id like 1%.' order by AU desc This is why <repeat>error checking with an echo of your query to the browser</repeat> is valuable. You can see exactly what the complete query string looks like, and also copy/paste it to the commandline for further testing. > The % are not necessary? because id is an auto_increment number from 0 to > 1,000+. The "like" keyword is used with a wildcard operator, either "%" or "_". If you're matching against an exact value, then use the "=" operator instead of "like". See the MySQL manual for more info on the "like" keyword and wildcards. If id has a numerical field type instead of one of the string types, you don't need to quote $id. See the MySQL manual for more info on quoting string values. -- CC

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