使用 php 打印树数组时出错
Error to print tree array with php
我有一个大问题要你解决，这让我很难受。
查看数组响应：
Array (
[category_id] => 1
[parent_id] => 0
[name] => Root Catalog
[is_active] =>
[position] => 0
[level] => 0
[children] => Array
(
[0] => Array
(
[category_id] => 2
[parent_id] => 1
[name] => AutomaBrasil
[is_active] => 1
[position] => 1
[level] => 1
[children] => Array
(
[0] => Array
(
[category_id] => 3
[parent_id] => 2
[name] => Automação
[is_active] => 1
[position] => 1
[level] => 2
[children] => Array
(
)
)
[1] => Array
(
[category_id] => 4
[parent_id] => 2
[name] => Balança
[is_active] => 1
[position] => 2
[level] => 2
[children] => Array
(
)
)
[2] => Array
(
[category_id] => 5
[parent_id] => 2
[name] => Caixa Registradora
[is_active] => 1
[position] => 3
[level] => 2
[children] => Array
(
)
)
[3] => Array
(
[category_id] => 6
[parent_id] => 2
[name] => Gaveta de Dinheiro
[is_active] => 1
[position] => 4
[level] => 2
[children] => Array
(
[0] => Array
(
[category_id] => 10
[parent_id] => 6
[name] => Acessórios
[is_active] => 1
[position] => 1
[level] => 3
[children] => Array
(
)
)
[1] => Array
(
[category_id] => 12
[parent_id] => 6
[name] => Gaveta de Dinheiro Automática
[is_active] => 1
[position] => 2
[level] => 3
[children] => Array
(
)
)
)
)
[4] => Array
(
[category_id] => 7
[parent_id] => 2
[name] => Impressora
[is_active] => 1
[position] => 5
[level] => 2
[children] => Array
(
)
)
)
)
))
在那之前很漂亮，但是当我尝试 "foreach" 时，它 returns 我是这样的：
1
0
Root Catalog
0
0
Array
我需要它来打印标签内的完整树 <ul> <li>。
我正在使用递归 foreach:
public function createTree($lists) {
echo '<ul>';
foreach ($lists as $list) {
echo '<li>';
echo $list['name'] . '';
echo '</li>';
if (is_array($list['children'])) {
$this->createTree($list['children']);
}
}
echo '</ul>';
}
你能帮我吗？谢谢！
您可以尝试将输出的子数组包装成 li:
将 $this->createTree($list['children'] 换成 echo '<li>'; $this->createTree($list['children']); echo '</li>'
我有一个大问题要你解决，这让我很难受。 查看数组响应：
Array (
[category_id] => 1
[parent_id] => 0
[name] => Root Catalog
[is_active] =>
[position] => 0
[level] => 0
[children] => Array
(
[0] => Array
(
[category_id] => 2
[parent_id] => 1
[name] => AutomaBrasil
[is_active] => 1
[position] => 1
[level] => 1
[children] => Array
(
[0] => Array
(
[category_id] => 3
[parent_id] => 2
[name] => Automação
[is_active] => 1
[position] => 1
[level] => 2
[children] => Array
(
)
)
[1] => Array
(
[category_id] => 4
[parent_id] => 2
[name] => Balança
[is_active] => 1
[position] => 2
[level] => 2
[children] => Array
(
)
)
[2] => Array
(
[category_id] => 5
[parent_id] => 2
[name] => Caixa Registradora
[is_active] => 1
[position] => 3
[level] => 2
[children] => Array
(
)
)
[3] => Array
(
[category_id] => 6
[parent_id] => 2
[name] => Gaveta de Dinheiro
[is_active] => 1
[position] => 4
[level] => 2
[children] => Array
(
[0] => Array
(
[category_id] => 10
[parent_id] => 6
[name] => Acessórios
[is_active] => 1
[position] => 1
[level] => 3
[children] => Array
(
)
)
[1] => Array
(
[category_id] => 12
[parent_id] => 6
[name] => Gaveta de Dinheiro Automática
[is_active] => 1
[position] => 2
[level] => 3
[children] => Array
(
)
)
)
)
[4] => Array
(
[category_id] => 7
[parent_id] => 2
[name] => Impressora
[is_active] => 1
[position] => 5
[level] => 2
[children] => Array
(
)
)
)
)
))
在那之前很漂亮，但是当我尝试 "foreach" 时，它 returns 我是这样的：
1
0
Root Catalog
0
0
Array
我需要它来打印标签内的完整树 <ul> <li>。
我正在使用递归 foreach:
public function createTree($lists) {
echo '<ul>';
foreach ($lists as $list) {
echo '<li>';
echo $list['name'] . '';
echo '</li>';
if (is_array($list['children'])) {
$this->createTree($list['children']);
}
}
echo '</ul>';
}
你能帮我吗？谢谢！
您可以尝试将输出的子数组包装成 li:
将 $this->createTree($list['children'] 换成 echo '<li>'; $this->createTree($list['children']); echo '</li>'