如何添加和划分php值

Question

我正在建立一个评分系统，我想要＆＃34; +＆＃34;和＆＃34; /＆＃34;

像这样：

例如：c71st =＆＃34; 89＆＃34; c72nd =＆＃34; 90＆＃34; c73rd =＆＃34; 89＆＃34; c74th =＆＃34; 70＆＃34;

<?php echo $userinfo['c71st'] ?> + <?php echo $userinfo['c71st'] ?> + <?php 
echo $userinfo['c71st'] ?> + <?php echo $userinfo['c71st'] ?> /2

我该如何添加和划分？ 当我输入+它只显示+登录php形式或html

这与其他问题不同

Answer 1

只需在php上添加并分割它们。不是在html或javascript中

Addons.objects.create(**tracks_data)

Answer 2

首先你必须创建$ userinfo数组

<?php
    $userinfo = array("c71st"=> 89, "c72nd"=> 90, "c73rd"=> 89, "c74th"=> 70);
    echo ($userinfo['c71st'] + $userinfo['c71st'] + $userinfo['c71st'] + $userinfo['c71st']) / 2 ;
    ?>