Unlike other languages such as C/C++, in PHP you can use the optional param of break like this:
break 2;
In this case if you have two loops such that:
while(...) {
while(...) {
// do
// something
break 2; // skip both
}
}
break 2
will skip both while loops.
Doc: http://php.net/manual/en/control-structures.break.php
This makes jumping over nested loops more readable than for example using goto
of other languages