Re: [chiPHPug-discuss] troublesome PHP behavior

[David R. <da...@ro...>]

I think it's returning what I would expect it to return.  Because PHP
doesn't really differential between an empty string and a null string,
then a string is a string.  Looking at the php manual for explode
(http://php.net/explode):
Return Values - If delimiter is an empty string (""), explode() will
return FALSE. If delimiter contains a value that is not contained in
string , then explode() will return an array containing string.

So, in your case, it's returning $string back to you as the first
element of the array... exactly as expected.
Now, if $string was a null, uninitialized variable, perhaps you have a
point, but I think it's pretty much working as intended.

Perhaps a string-length check is appropriate in this circumstance
before you explode the string?  Or, when you do a count($array) in a
conditional, also do a len($string)?
-Rovani


(please don't take it as condescending... definitely not meant that way)

On Fri, Feb 20, 2009 at 3:00 PM, Arlo Leach <ar...@ar...> wrote:
> Hi folks,
>
> Consider the following PHP code, which explodes an empty string:
>
>    $string = "";
>    $array = explode("|", $string);
>    print_r($array);
>    print "Length: ".count($array);
>
> I would expect this to output an empty array:
>
>    Array ( ) Length: 0
>
> But it actually outputs:
>
>    Array ( [0] => ) Length: 1
>
> Does anyone else find this odd? It has bitten me a few times lately, when I
> test the existence of data with a count(), or try to process data with a FOR
> loop. I end up writing this a lot to get the expected results:
>
>    $array = ($string) ? explode(",", $string) : array() ;
>
> I was considering logging a bug report but wondered what your thoughts were.
>
> Cheers,
> -Arlo
>
> _______________________________
>
> Arlo Leach
> 773.769.6106
> http://arlomedia.com
>
>
>
>
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
> -Strategies to boost innovation and cut costs with open source participation
> -Receive a $600 discount off the registration fee with the source code: SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
> chiPHPug-discuss mailing list
> chi...@li...
> https://lists.sourceforge.net/lists/listinfo/chiphpug-discuss
>