["by1ref"]=>
int(2)
["by2ref"]=>
["by1ref"]=>
int(2)
["by2ref"]=>
["by1ref"]=>
int(2)
["by2ref"]=>
["by1ref"]=>
int(2)
["by2ref"]=>
["by1ref"]=>
int(2)
["by2ref"]=>
["by1ref"]=>
int(2)
["by2ref"]=>
["bynext"]=>
array(3) {
[0]=>
["bynext"]=>
array(3) {
[0]=>
by1ref: 2
by2ref: 1
byXref: 2
by1ref: 2
by2ref: 1
byXref: 2
+bynext: 1
+bynext: 2
+bynext: 3