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

Lorna Mitchell's Blog: Github to Jira Bug Migration Script

Alex Netkachov's Blog: Optimize PHP memory usage: eliminate circular references

Zend Developer Zone: Zend Framework v1.7.4 Released

Procurios Tech Blog: Autocompleting a lot of parameters

Lukas Smith's Blog: One thumb up and two down (Zend_Http_Client)


Community Events

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


release language symfony security voicesoftheelephpant threedevsandamaybe version interview framework library laravel5 laravel series community extension introduction podcast opinion api unittest

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework