Lorna Mitchell has a new post to her site looking at a feature of the upcoming PHP 5.6 release, the splat operator (three ellipsis...).

We have a couple of new features coming in to PHP 5.6 with names that sound much less exciting than the features they actually represent: "variadic functions" sound positively academic, and "argument unpacking" isn't exactly catchy. However they both use a new operator in PHP which looks like an elipsis (three dots ...) and is referred to as either the splat operator or the scatter operator. I included them in a recent version of my "Upgrading PHP" talk so I thought I'd share the examples here too in case anyone is interested.

She includes an example of it being used in a variadic function, one that lets you define an optional number of parameters without having to resort to func_get_args. She also talks about "argument unpacking" or the passing in of an array of values with the splat to have it handled like a string. An example with the mail function is included.