[bwaxxlo]

I wanted to actually ask the same thing! I knew of continue but I never encountered such a scenario. It's a poor man's generator.

[arcatek]

In other languages (such as PHP), the same thing can sometimes be achieved by using "break N" / "continue N", where N is the number of loop you wish to break/continue.

[mgkimsal]

Specifically in PHP, though, you can't (anymore) break a variable value.

break $n;

isn't valid since PHP 5.4