<?
# Trigger bug
$array = array('a', 'b', 'c', 'd');
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as &$a) {}
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as $a) {} # <-- this non-reference iteration changes the last item in the array to the second last item.
print_r($array); # expected a, b, c, d but got a, b, c, c
die();
?>

<?
# Does not trigger bug 1
$array = array('a', 'b', 'c', 'd');
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as &$a) {}
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as &$a) {}
print_r($array); # expected a, b, c, d
die();
?>


<?
# Does not trigger bug 2
$array = array('a', 'b', 'c', 'd');
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as &$a) {}
print_r($array); # expected a, b, c, d
echo '<hr/>';
print_r($array); # expected a, b, c, d
die();
?>


<?
# Does not trigger bug 3
$array = array('a', 'b', 'c', 'd');
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as $a) {}
print_r($array); # expected a, b, c, d
echo '<hr/>';
foreach ($array as $a) {}
print_r($array); # expected a, b, c, d
die();
?>