為啥我遞歸遍歷，然后獲取不到值了？

public function aaaaAction() {
    $a = $this->test([],0);
    $this->newLog(__FUNCTION__,"aaa","測試",json_encode($a));
}
public function test($result,$a) {
    if($a < 200) {
        $a++;
        array_push($result,"123");
        $this->test($result,$a);
    } else {
        $ccc = $result;
        $this->newLog(__FUNCTION__,"aaa","嘿嘿嘿",json_encode($result));
        return $ccc;
    }
}