raffle/application/api/common.php

<?php

use think\Config;

function make_curl($where,$url, $params=array()){
    $str= 'site.'.$where['website'];
    $url =Config::get($str).$url;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded"));
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 60);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
    $result = curl_exec($ch);
    $result = json_decode($result,true);
    return $result;
}

function get_rand($proArr)
{
    $result = '';
    //概率数组的总概率精度
    $proSum = array_sum($proArr);

    //概率数组循环
    foreach($proArr as $key => $proCur)
    {
        // 获取随机数
        $randNum = mt_rand(1, $proSum);
        if($randNum <= $proCur)
        {
            $result = $key;
            break;
        }
        else
        {
            // 减掉当前中奖的概率
            $proSum -= $proCur;
        }
    }
    unset ($proArr);
    return $result;
}