<?php
function getTree($treeByParent, $treeByCat, $id, $listed = []) {
$gTree = [];
$gTree[] = $treeByCat[ $id ];
if ( count($treeByParent[ $id ]) > 0) {
foreach ($treeByParent[ $id ] as $cat) $gTree[] = $cat;
}
if ( count($treeByCat[ $treeByCat[$id] ]) > 0 ) getTree($treeByParent, $treeByCat, $treeByCat[ $treeByCat[$id] ]);
return $gTree;
}
$treeByParent = array(
0 => array(1, 2),
1 => array(3, 7),
3 => array(4),
4 => array(5)
);
$treeByCat = array(
1 => 0,
2 => 0,
3 => 1,
7 => 1,
4 => 3,
5 => 4
);
print_r( getTree($treeByParent, $treeByCat, 3) );
preferences:
34.18 ms | 402 KiB | 5 Q