php分类递归递归的问题<?php <br />
function arrayPidProcess($data,$res=array(),$pid='0',$endlevel='1'){<br>
foreach ($data as $k => $v){<br>
if($v['pid']==$pid){<br>
$res[$v['id']]['info']=$v;<br>
if($endlevel!='0'){<br>
if($v['level']==$endlevel){<br>
$child=null;<br>
}<br>
else{<br>
$child=arrayPidProcess($data,array(),$v['id'],$endlevel);<br>
}<br>
$res[$v['id']]['child']=$child;<br>
}<br>
else{<br>
$child=arrayPidProcess($data,array(),$v['id']);<br>
if($child==''||$child==null){<br>
$res[$v['id']]['child']=null;<br>
}<br>
else{<br>
$res[$v['id']]['child']=$child;<br>
}<br>
}<br>
<br>
}<br>
}<br>
return $res;<br>
}<br>
$arr = array(<br>
array('id'=>1, 'name'=>'c', 'pid'=>0, 'level'=>1),<br>
array('id'=>2, 'name'=>'a', 'pid'=>0, 'level'=>1),<br>
array('id'=>3, 'name'=>'v', 'pid'=>1, 'level'=>2),<br>
array('id'=>4, 'name'=>'q', 'pid'=>3, 'level'=>3),<br>
array('id'=>5, 'name'=>'w', 'pid'=>4, 'level'=>4),<br>
array('id'=>6, 'name'=>'e', 'pid'=>5, 'level'=>5),<br>
array('id'=>7, 'name'=>'r', 'pid'=>0, 'level'=>1),<br>
array('id'=>8, 'name'=>'t', 'pid'=>0, 'level'=>1),<br>
array('id'=>9, 'name'=>'y', 'pid'=>0, 'level'=>1),<br>
array('id'=>10, 'name'=>'u', 'pid'=>0, 'level'=>1),<br>
array('id'=>11, 'name'=>'i', 'pid'=>0, 'level'=>1),<br>
);<br>
print_r(arrayPidProcess($arr));
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