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<?php
$a = array(
'leg1'=>'1',
'leg2'=>'2',
'leg3'=>'3',
'leg4'=>'4',
'leg5'=>'5');
while($current = current($a)) {
echo $current . "... ";
$next = next($a);
$nextnext = next($a);
echo "<br>".$next;
echo "<br>".$nextnext;
}