RE: [PHP] A little confusing thing on (mistakenly) geting a offset from string with multi dim index.

> -----Original Message----- > From: Jim Lucas [mailto:lists@cmsws.com] > Sent: 15 May 2014 16:47 > To: php-general@lists.php.net > Subject: Re: [PHP] A little confusing thing on (mistakenly) geting a > offset from string with multi dim index. > > On 05/14/2014 05:55 PM, Rain Lee wrote: > > So, here is the TLDR; > > > > $string = 'this is a string'; > > > > In PHP 5.5 > > isset($string['check']) === false > > isset($string['check'][0]) === true > > > > Why can't let > > isset($string['check']) === false > > isset($string['check'][0]) === false <-- > > > > ? > > > > I can see WHAT you are doing and WHAT the results are, but I don't > understand > WHY would you ever do this? > > You defined $string with a string of characters. But you are trying > to use > $string as an array. This hits me as completely wrong. That's a perfectly normal PHP idiom to get the nth character of the string, I do it all over the place - $string[$n] is equivalent to substr($string, $n, 1); Cheers! Mike -- Mike Ford, Electronic Information Developer, Libraries and Learning Innovation, 403a Leslie Silver Building, City Campus, Leeds Metropolitan University, Woodhouse Lane, LEEDS, LS1 3ES, United Kingdom E: m.ford@leedsmet.ac.uk T: +44 113 812 4730 From 22 September 2014 Leeds Metropolitan University will become Leeds Beckett University. Find out more at http://www.leedsbeckett.ac.uk To view the terms under which this email is distributed, please go to:- http://www.leedsmet.ac.uk/email-disclaimer.htm