我正在尝试使用从MySQL返回给我的平面树中的深度来构建嵌套数组(菜单)。
不幸的是,我已经使用这段代码累了好几天了,我似乎无法让它正常工作。有没有人可以帮助我并告诉我如何正确地做到这一点?
$dataset = json_decode('{"results":[{"title":"Hoofdcategorie","clean_title":"hoofdcategorie","depth":0},{"title":"Hoofdcategorie 2","clean_title":"hoofdcategorie 2","depth":0},{"title":"Subcategorie","clean_title":"subcategorie","depth":1}]}');
function buildTree(&$tree, $current_depth = 0) {
$formattedTree = [];
// start at zero and loop through
while($node = current($tree)) {
// if our node depth is bigger then our current depth
if($node->depth > $current_depth) {
// repeat function from current depth
$formattedTree[] = buildTree($tree, $node->depth);
} elseif($node->depth < $current_depth) {
// we need to go one stap backwards, return the tree
return $formattedTree;
} else {
// add current iteration
$formattedTree[] = $node;
// proceed to next iteration
next($tree);
}
}
echo '<pre>';
print_r( $formattedTree );
echo '</pre>';
}
buildTree($dataset->results, 0);
它只是不能正确构建树。
祝你好运
答案 0 :(得分:0)
点击此处查看管理层次结构数据http://mikehillyer.com/articles/managing-hierarchical-data-in-mysql/
您还可以在此处查看实现嵌套集 https://github.com/ben-nsng/nestedset-php
现在指导自己实施它。