Re: ltrim behavior.

On Wed, 11 Mar 2009 15:28:04 -0400 Paul M Foster <paulf@quillandmouse.com> wrote: > On Wed, Mar 11, 2009 at 03:07:18PM -0400, Peter van der Does wrote: > > > This might be old for some of you but I never encountered it until > > today and I would like to know why this is happening. > > > > Here's the situation: > > php > $a='data[options][name]'; > > php > echo ltrim($a,'data['); > > options][name] > > > > Just as I expected. > > > > Next one: > > php > $a='options[options][name]'; > > php > echo ltrim($a,'options['); > > ][name] > > > > UH, what? > > Not exactly what I expected. > > > > This works: > > php > $a='options[options][name]'; > > php > echo ltrim(ltrim($a,'options'),'['); > > options][name] > > > > Can somebody explain the second behavior? Is this a known bug in > > PHP, I'm running PHP 5.2.6 on Ubuntu. > > Take a look at the documentation for ltrim(): > > http://us2.php.net/manual/en/function.ltrim.php > > The string you're including as the second parameter to ltrim() is the > *characters* you want to trim on, not the *character pattern*. If you > think about it that way, it will make sense. Also one of the examples > on the referenced documentation page does something similar to what > you've cited. Work through that example, and you'll see. > > Paul > OK, the light bulb went on now. I did see it was characters, and not a string, but for some reason it didn't get in my brain what the consequence was. Thanks and I apologize for the "stupid" question. -- Peter van der Does GPG key: E77E8E98 IRC: Ganseki on irc.freenode.net Blog: http://blog.avirtualhome.com Forums: http://forums.avirtualhome.com Jabber ID: pvanderdoes@gmail.com GetDeb Package Builder http://www.getdeb.net - Software you want for Ubuntu