News Feed

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

Joshua Eichorn\'s Blog: ZActiveRecord can\'t work? Try-Catch Syntax Weirdness

Michael Kimsal's Blog: Grails for PHP Developers Part 5

WaxJelly Blog: The easiest way to scrape details from a MySpace profile page with PHP

David Otton's Blog: Stupid PHP Tricks: Illegal Variable Names

Community Events

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

community framework interview library voicesoftheelephpant symfony podcast introduction deployment laravel bugfix release package install unittest api zendserver series opinion language

All content copyright, 2014 :: - Powered by the Solar PHP Framework