how to obtain the following data
{
title=titlevalue=iddata= pid=id
pid=0
title=value=1,data=[]}
how to obtain the following data
{
title=titlevalue=iddata= pid=id
pid=0
title=value=1,data=[]}
function tree($arr, $pid=0){
foreach($arr as $k => $v){
if($v['pid'] == $pid){
$v['data'] = tree($arr, $v['id']);
$tree[] = $v;
}
}
return isset($tree)? $tree : [];
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