<?php
use think\Db;

// 获取模板区域
function get_city_area()
{
    $field=['id','pid','name'];
    $list=Db::name('china_area')->where('pid',0)->field($field)->select();
    foreach ($list as $k=>&$v){
        $v['children']= Db::name('china_area')->where('pid',$v['id'])->field($field)->select();
    }
    return $list;
}

function http_curl($url,$type='get',$res='json',$arr=''){

    $headers = array();
    //根据API的要求，定义相对应的Content-Type
    array_push($headers, "Content-Type".":"."application/x-www-form-urlencoded; charset=UTF-8;application/json");
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $type);
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($curl, CURLOPT_FAILONERROR, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HEADER, false);
    $output = curl_exec($curl);
    curl_close($curl);
    if($res=='json'){
        if($output === false){
            //请求失败，返回错误信息
            return curl_error($curl);
        }else{
            //请求成功，返回信息
            return json_decode($output,true);
        }
    }
}

function curl_get($url)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($ch);
    curl_close($ch);
    if($output === false){
        return curl_error($ch);
    }else{
        return json_decode($output,true);
    }
}

/**
 * 把返回的数据集转换成Tree
 * @param array $list 要转换的数据集
 * @param string $pk 自增字段（栏目id）
 * @param string $pid parent标记字段
 * @return array
 */
function make_tree($list,$pk='id',$pid='pid',$child='children',$root=0){
    if(is_object($list)) $list = $list->toArray();
    $tree=array();
    $packData=array();
    foreach ($list as $data) {
        $packData[$data[$pk]] = $data;
    }
    foreach ($packData as $key =>$val){
       if($val[$pid]==$root){//代表跟节点
            $tree[]=& $packData[$key];
        }else{
            $packData[$val[$pid]][$child][]=& $packData[$key]; //找到其父类
        }
    }
    return $tree;
}


//判断字段存在并不为空
function isset_full($arr, $key)
{
    if (isset($arr[$key]) && !empty($arr[$key])) {
        return true;
    } else {
        return false;
    }
}

//判断字段存在并不为空 并且等于验证值
function isset_full_check($arr, $key,$check_val)
{
    if (isset($arr[$key]) && !empty($arr[$key]) && $arr[$key] == $check_val) {
        return true;
    } else {
        return false;
    }
}


function all_pay_type()
{
    return [ '--','微信[H5]','支付宝[H5]','微信[APP]','支付宝[APP]','微信[公众号]' ];
}

/**
 * 生成32位随机数
 */
function get32Str($length='32'){
    $str = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
    $len = strlen($str)-1;
    $randstr = '';
    for ($i=0;$i<$length;$i++) {
        $num=mt_rand(0,$len);
        $randstr .= $str[$num];
    }
    return $randstr;
}