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136.27 ms | 1399 KiB | 7 Q<? php
function create_tree($arr,$pid=0) {
$ret = array();
foreach($arr as $k => $v) {
if($v['pid'] == $pid) {
$tmp = $arr[$k];unset($arr[$k]);
$tmp['children'] = create_tree($arr,$v['id']);
$ret[] = $tmp;
}
}
return $ret;
$arr = array(
array('id'=>1,'pid'=>'0','name'=>'11111'),
array('id'=>2,'pid'=>'1','name'=>'22222'),
array('id'=>3,'pid'=>'0','name'=>'33333'),
array('id'=>4,'pid'=>'3','name'=>'44444'),
array('id'=>5,'pid'=>'4','name'=>'55555'),
array('id'=>6,'pid'=>'1','name'=>'66666')
);
print_r(create_tree($arr));
}