Re: A little confusing thing on (mistakenly) geting a offset from string with multi dim index.

On 05/15/2014 09:26 AM, Ford, Mike wrote:

-----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);

You are pulling data from a string using a method that is perfectly valid. He is testing for something. Not the same thing.

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

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