<?php

$outter_counter = 0;

while(true) {
	$inner_counter = 0;
	echo "Outter: $outter_counter\n";
	 do {
		echo "Inner: $inner_counter\n";
		$inner_counter++;
	}while($inner_counter < 7);
	if($outter_counter == 21) break;
	$outter_counter+=1;
}