Question

问题

基本上我有一个游戏，其中两支球队相互竞争。通过第一个while循环，我获得了这些团队名称和信息。在第二个循环中，我将获取参与这些团队的用户名/成员，然后运行查询以获取其记录。

我已经习惯了最后一次循环计算，即如果A队有2名球员被命名为 Joe和Mike 而B队有3名球员被命名为 John，Jack和Dave 所以对于A队来说，乔跑了5公里，迈克跑了7公里，这为A队带来了<12>公里。同样，对于B队约翰跑了11公里，杰克做了2公里，戴夫做了1公里，这对于B队来说总共14公里。但由于这个循环显示 A队= 12km 和 B队= 26km 。如果有人能引导我走向可能出错的地方，那将是很棒的。

代码

    $t_name = "Joe Running8 Vs Mike Running2";
    $sql_team = 'SELECT * FROM teams WHERE t_name="'.$t_name.'" AND game_type = "Activity"';
    $result_team = mysql_query($sql_team) or die(mysql_error());
    $totalNoUsers = '';
    $activityTotal = '';
    $avgPP = '';

    //Table structure for displaying the results    
    echo '<table border="1" align="center" width="100%">';
        echo '<tr>';
            echo '<th>Team Name</th>';
            echo '<th>Total no Activity</th>';
            echo '<th>Total Users</th>';
            echo '<th>Avg per User</th>';
            echo '<th>Avg %</th>';
        echo '</tr>';

    while($row_team = mysql_fetch_array($result_team)){
        $sql_SelUsers = 'SELECT * FROM teams where t_name="'.$row_team['team'].'"';
        echo $sql_SelUsers."<hr>";
        $result_SelUsers = mysql_query($sql_SelUsers) or die(mysql_error());
        $totalNoUsers = mysql_num_rows($result_SelUsers);

        while($row_SU = mysql_fetch_array($result_SelUsers)){
            //$accepted_on = "30/01/2013";
            $userA = explode("/","27/01/2014");
            $accepted_on = mktime(0,0,0, $userA[1],$userA[0],$userA[2]);
            $date_time_compare = date('D, j M Y H:i:s', $accepted_on);

            $sql = 'SELECT * FROM data_feeds where username="'.$row_SU['username'].'" AND gadget_data_type= "Activity" and gadget_name = "'.$row_SU['gadget_type'].'" and gadget_sub_data_type = "'.$row_SU['game_parameter'].'" and STR_TO_DATE( date_time,  "%a, %e %b %Y %H:%i:%s" ) >= STR_TO_DATE( "'.$date_time_compare.'",  "%a, %e %b %Y %H:%i:%s" ) ORDER BY df_id DESC';

            $result_df = mysql_query($sql) or die(mysql_error());

            echo $row_SU['username']."<br />";

          /****** Here is the problem ********/
            while($row_df = mysql_fetch_array($result_df)){
                $activityTotal += $row_df['gadget_data_type_value'];
                echo "<br /><strong>".$activityTotal."</strong><br />";
            }   
        }//end while query data_feeds

        echo "TnP-> ".$totalNoUsers;
        $activityTotal = $activityTotal/1000;
        $avgPP = ($activityTotal/$totalNoUsers);
            echo '<tr>';
                echo '<td>'.$row_team['challToTeam'].'</td>';
                echo '<td>'.number_format($activityTotal, 2, '.', ',').'</td>';
                echo '<td>'.$totalNoUsers.'</td>';
                echo '<td>'.number_format($avgPP, 2, '.', ',').'</td>';
                echo '<td>'.$totalNoUsers.'</td>';
            echo '</tr>';
    }//end while query Teams

    echo '</table>';

Answer 1

您需要在循环之前重置$activityTotal。在第一个循环后，它的值是12公里，并且然后你增加14公里，它变成26公里而不是14公里。

校正：

    $activeTotal = 0   // RESET TO ZERO 
    while($row_df = mysql_fetch_array($result_df)){
        $activityTotal += $row_df['gadget_data_type_value'];
        echo "<br /><strong>".$activityTotal."</strong><br />";
    }

Answer 2

$activityTotal set to empty or 0 before next team total start
//use

$activityTotal = 0; //init to 0 before loop

在一个循环中断开并继续

2 个答案: