what does this symbol do?

[Anon]

Hi,

excuse my ignorance but what does this symbol do:

=>

Does it have something to do with variable assignment?

I can't find a reference to it in my PHP book, "Professional PHP Programming" - Wrox.
Thanks - Tony.

[[deleted]]

It is used to assign values to keys inside arrays:

$array = array('key'=>'val', 'otherkey'=>546);