News Feed
Jobs Feed
Sections




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

Reddit.com:
Today I learned about variable variables...
October 21, 2010 @ 12:05:30

Over on Reddit.com there's an interesting post (yes, despite some of the comments made on it) about variable variables that turns into a detailed look at PHP variable handling as based around "$".

OK, here's the thing: [variable variables are] only the entrance of the rabbit hole. [...] The first thing to understand is what $ is. $ is actually a shorthand for ${} and means "return the value of the variable whose name is contained in this".

The response goes on to talk about variable names as strings, a few string handling tricks that can be used when referencing them and how this works with objects too. Things get a bit more complicated when they start adding in more levels of "variable" and evaluations based on random results. Not overly useful information for the casual developer, but interesting to know none the less.

0 comments voice your opinion now!
variable variable detail guide handling


blog comments powered by Disqus

Similar Posts

Sebastian Bergmann's Blog: So Long, and Thanks for all the PEARs

PHP-Coding-Practices.com: Composing Methods: Introduce Explaining Variable

Gonzalo Ayuso: How to use environ variables to create different environments with PHP

PHPBuilder: A Primer On Postgres Exception Handling For The PHP Developer

Zend Developer Zone: ZendCon 2010: Zend(Un)Con


Community Events











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


hhvm overview application code podcast unittest component package security introduction framework composer install release hack example facebook opinion symfony2 language

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