phpdever

<?php

// 原始数组
$primitiveArray = [
    [1, 2, ''],
    [2, ''],
    [2, ''],
    [2, 4, ''],
    [1, 2, 3, ''],
    [2, 3, ''],

phpdever

db.test.aggregate([
{
  $project: {
    _id: null,
    Month: {
      $cond: {
        if: {$eq: ["$month", 3]},
        then: 1,
        else: 0
      }

phpdever

$result = json_decode($json,true);
foreach($result['result']['items'] as $key=>$val){
      $where['id'] = array('eq',$val['id']);
      $items = M('item')->where($where)->order('id asc')->select();
}

phpdever

 public function getDown(&$fenxiaos,$userid){
        $user=M('user');
        $where = array(
                'shares_tree' => array('like','%|'.$userid.'|-%'),
                'status' => 1,
                'uid'=>array('in',array('2','3','5'))
         );
        $users=$user->where($where)->field('id')->select();
        foreach($users as $key=>$value){
            $fenxiaos[] = $value['id'];