php 遞歸返回值的問(wèn)題
請(qǐng)大佬幫我看看 遞歸循環(huán) 查找上級(jí) 在循環(huán)里面打印數(shù)據(jù)全部拿到了，但是return 返回?cái)?shù)據(jù)后卻是空，請(qǐng)問(wèn)是怎么回事？？
public function for_enter($data=array(),$level=0,$shu=array(),$s=0){
$ui = M('ui');
$array = array();
$where['is_enter'] = 1;
foreach ($data as $k => $v) {
$child = $ui->where(array('code'=>$v['pcode']))->select();
if (empty($child)) {
return '';
}else{
if ($child[0]['level'] == 4) {
$this->for_enter($child,$level,'');
}else{
if ($child[0]['is_enter'] == 1) {
if (($level - $child[0]['level']) == 3) {
$shu['three'] = $child[0];
$this->for_enter($child,$level,$shu);
}
if (($level - $child[0]['level']) == 2) {
$shu['tow'] = $child[0];
$this->for_enter($child,$level,$shu);
}
if (($level - $child[0]['level']) == 1) {
//判斷是幾級(jí)
$shu['one'] = $child[0];
$this->for_enter($child,$level,$shu);
}
}
}
}
$array[] = $shu;
}
return $array;
}
打印數(shù)據(jù)
返回?cái)?shù)據(jù)
php 遞歸返回值的問(wèn)題
ibeautiful
2019-03-10 08:10:19
