News Feed
Sections




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

David Otton's Blog:
Stupid PHP Tricks Illegal Variable Names
August 22, 2008 @ 13:47:52

David Otton has shared another of his "stupid PHP tricks" on his blog today. This one looks at illegal variable names that don't match the "can't start with a number" rule the manual points out.

A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores. As a regular expression, it would be expressed thus: '[a-zA-Z_x7f-xff][a-zA-Z0-9_x7f-xff]*'

Technically, you can get around this in two different ways - variable varaibles and the more complex notation with curly braces. He points to the compact function for proof that they're set.

0 comments voice your opinion now!
variable trick illegal name compact curlybrace


blog comments powered by Disqus

Similar Posts

Derick Rethans' Blog: Collecting Garbage: PHP's take on variables

Brian Moon's Blog: PHP/MySQL Debug Trick

Sherif Ramadan: A Closer Look Into PHP Arrays: What You Donít See

Funcaday.com: Special Valentines Day Edition (isLove)

Justin Silverton\'s Blog: PHP editor bonanza


Community Events





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


api opinion introduction list configure podcast laravel community symfony voicesoftheelephpant conference interview version install extension release series composer language unittest

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