News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Johannes Schluter's Blog:
References and foreach
August 20, 2010 @ 12:44:35

To reinforce a point he's made before (references in PHP are bad) Johannes Schluter has posted an example to his blog of a specific instance that causes an (expected) issue with references and foreach loops.

Now there is one use case which leads to an, at first, unexpected behavior which I didn't see as a real live issue when I stumbled over it at first, but then there were a few bug reports about it and recently a friend asked me about it ... so here it goes.

He show a code snippet of looping over an array with two foreaches and a print_r that shows the bug - the array changed from the original for no clearly apparent reason. To understand why this happens, he goes into detail on how variables are handled - complete with graphs.

1 comment voice your opinion now!
references foreach array bug handling variable


blog comments powered by Disqus

Similar Posts

PHPMac.com: IP Banning

Zeev Suraski's Blog: PHP Security

Douglas Brown's Blog: Three Important Tips to Write PHP Code Defensively

Dan Scott's Blog: File_MARC and Structure_Linked_List: new alpha releases

PHPMaster.com: Spooky Scary PHP


Community Events





Don't see your event here?
Let us know!


community interview series update library deployment introduction list package language install api release symfony tips laravel zendserver opinion framework podcast

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework