while循环只显示一个结果

Question

有人能告诉我下面的代码有什么问题吗？出于某种原因，它只返回一个结果。我检查了使用mysql_num_rows（）从查询返回了多少行，它说了两个，那么为什么我只看到一个结果呢？

function get_events($amount) { 
    global $wpdb; 
    $today = date('Y-m-d'); 
    $result = mysql_query(
     "SELECT 
      wp_eventscalendar_main.eventTitle, wp_eventscalendar_main.eventDescription, wp_eventscalendar_main.eventStartDate, wp_eventscalendar_main.postID, wp_postmeta.post_id, wp_postmeta.meta_key, wp_postmeta.meta_value 
     FROM 
      wp_eventscalendar_main, wp_postmeta 
     WHERE 
      STR_TO_DATE('$today', '%Y-%m-%d') < wp_eventscalendar_main.eventStartDate AND 
      wp_postmeta.post_id = wp_eventscalendar_main.postID AND 
      wp_postmeta.meta_key = '_thumbnail_id' 
     ORDER BY wp_eventscalendar_main.eventStartDate ASC 
     LIMIT 10") or die(mysql_error()); 

    while($row = mysql_fetch_array($result)) { 

    $thumbpostid = $row['meta_value']; 

    $result2 = mysql_query(" 
    SELECT 
     post_id, meta_key, meta_value 
    FROM 
     wp_postmeta 
    WHERE 
     post_id = $thumbpostid AND 
     meta_key = '_wp_attached_file'") or die(mysql_error()); 

    while($row2 = mysql_fetch_array($result2)) { 
     $thumburl = explode(".",$row2['meta_value']); 
    } 

    $shortdesc = limitWrds($row['eventDescription'], 10); 

    $rawdate = date('d M', strtotime($row['eventStartDate'])); 
    $date = explode(' ', $rawdate); 

    $postlink = strtolower(str_replace(' ', '-', preg_replace("/[^a-zA-Z0-9\s]/", "", $row['eventTitle']))); 

     echo "<div class=\"event\"> 
       <div class=\"txt\"> 
        <h5><a href='/" . $postlink ."'>" . $row['eventTitle'] . "&sbquo;&nbsp;" . $date[1] ."&nbsp;" . $date[0] . "</h5></a> 
        <p>" . $shortdesc ."&hellip;&nbsp; 
        <a href=\"" . $postlink . "\">find out more &raquo;</a></p> 
       </div><img src='/wp-content/uploads/". $thumburl[0] ."-42x42.jpg' alt='". $row['eventTitle'] ."' /> 
      </div>"; 
      echo _clear('15');  
     } 
} 

感谢，

Answer 1

你需要把所有的代码进入第二while循环。你基本上覆盖了第一行。

while($row2 = mysql_fetch_array($result2)) { 
    $thumburl = explode(".",$row2['meta_value']); 
} 

它可能循环两次，但你只有1个变量。

应该是：

while($row2 = mysql_fetch_array($result2)) { 
    $thumburl = explode(".",$row2['meta_value']); 

    $shortdesc = limitWrds($row['eventDescription'], 10); 

    $rawdate = date('d M', strtotime($row['eventStartDate'])); 
    $date = explode(' ', $rawdate); 

    $postlink = strtolower(str_replace(' ', '-', preg_replace("/[^a-zA-Z0-9\s]/", "", $row['eventTitle']))); 

    echo "<div class=\"event\"> 
      <div class=\"txt\"> 
       <h5><a href='/" . $postlink ."'>" . $row['eventTitle'] . "&sbquo;&nbsp;" . $date[1] ."&nbsp;" . $date[0] . "</h5></a> 
       <p>" . $shortdesc ."&hellip;&nbsp; 
       <a href=\"" . $postlink . "\">find out more &raquo;</a></p> 
      </div><img src='/wp-content/uploads/". $thumburl[0] ."-42x42.jpg' alt='". $row['eventTitle'] ."' /> 
     </div>"; 
     echo _clear('15'); 
} 

据我可以告诉。