Possible Duplicate:
what's an actual use of variable variables?
Ok, this question may look a little bit point-whoreish but i'd really like to know: when variable variables are useful? I'm programming in PHP for several years but i've never used them. For me it looks rather funny than useful.
Can you provide some real life examples about variable variables?
Thanks, fabrik
update:
I'm really sorry about your votes. The linked 'duplicate' may be really a dupe except one thing: the examples listed there are show me why not to use variable variables.