树桩结构

[大白の白]

while($arr = $DBHandle->fetch_array($query)){
print_r($arr);
}

如何将这些值以树桩结构输出

[xuzuning]

参考：
https://bbs.csdn.net/topics/390364669
https://bbs.csdn.net/topics/370094009

[大白の白]

while($data = $DBHandle->fetch_array($query)) {
list($id, $pid) = array_values($data);
$ind[$id] = $data;
if(isset($ind[$pid])) $ind[$pid]['child'][$id] =& $ind[$id];
if($pid == 0) $res[$id] =& $ind[$id];
}
echo '<xmp>' . print_r($res, 1).'</xmp>';

[大白の白]

Array
(
[1] => Array
(
[id] => 1
[pid] => 0
[title] => Food
[child] => Array
(
[2] => Array
(
[id] => 2
[pid] => 1
[title] => Fruit
[child] => Array
(
[3] => Array
(
[id] => 3
[pid] => 2
[title] => Red
[child] => Array
(
[4] => Array
(
[id] => 4
[pid] => 3
[title] => Cherry
)

)

)

[5] => Array
(
[id] => 5
[pid] => 2
[title] => Yellow
[child] => Array
(
[6] => Array
(
[id] => 6
[pid] => 5
[title] => Banana
)

)

)

)

)

[7] => Array
(
[id] => 7
[pid] => 1
[title] => Meat
[child] => Array
(
[8] => Array
(
[id] => 8
[pid] => 7
[title] => Beef
)

[9] => Array
(
[id] => 9
[pid] => 7
[title] => Pork
)

)

)

)

)

)

[大白の白]

如何将结构以HTML格式表现出来？

[xuzuning]

你还可以看看这个 https://bbs.csdn.net/topics/40265325