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如何更改下面的代码，以便我只回显每个唯一的“$ course”一次？

例如。目前我的结果看起来像 =

ipswich-11:00-running ipswich-12:00-flamingo rider ipswich-14:00-lightning norwich-13:10-ed is back norwich-14:05-redrum norwich-17:05-pickle

但我希望它们看起来像 =

伊普斯维奇

11:00-跑步 12:00-火烈鸟骑手 14:00-闪电

诺里奇

13:10-ed 回来了 14:05-redrum 17:05-pickle

我想过在 for each 循环中做一个 mysqli 查询，但肯定有更好的方法吗？

我的代码 =

<?php //connection block

if ($mysqli->connect_error) {die('Connect Error: ' . $mysqli->connect_error);}

$today = date("Ymd");
$query = "SELECT horse, course, time, date FROM dailytips WHERE date = $today ORDER BY course, time"; 
$result = $mysqli->query($query);

$today_uk = " " . date("d/m/y");

while($row = $result->fetch_array()) 
{ $rows[] = $row; }

echo "<h2>tips for" .$today_uk. "</h2>";

foreach($rows as $row) 
{ 
$date = $row['date'];
$date = date("d/m/y", strtotime($date));
$horse = $row['horse'];
$time = $row['time'];
$course = $row['course'];

echo  
'<div style= "width:600px; font-family:verdana;">
 <div style="float:left; width:400px; margin-bottom:10px; margin-top10px;">

        '.$row['course']. "-" .$row['time'] . "-" . $row['horse'] .'
 </div>' ;
}

$result->close();
$mysqli->close(); 

?>
4

1 回答 1

-1

我想你可以在另一个中嵌套一个 foreeach 语句。

所以...

$query = "SELECT course, FROM dailytips WHERE date = $today ORDER BY course, time";
while($row = $result->fetch_array()) 
{ $rows[] = $row; }

echo "<h2>tips for" .$today_uk. "</h2>";

foreach($rows as $row) {
   $query = "SELECT horse, time, date FROM dailytips WHERE course = $row['course'];
   while($row = $result->fetch_array()) 
   { $rowDetail[] = $rowDetails; }

   foreach($rows as $row) { 
       $date = $row['date'];
       $date = date("d/m/y", strtotime($date));
       $horse = $row['horse'];
       $time = $row['time'];
       $course = $row['course'];

       echo  
          '<div style= "width:600px; font-family:verdana;">
          <div style="float:left; width:400px; margin-bottom:10px; margin-top10px;">

          '.$row['course']. "-" .$row['time'] . "-" . $row['horse'] .'
          </div>' ;
      }
   }

我会考虑将您的结果放在与 DIV 相对的表格中，因为这似乎更适合您想要做得更好。在循环之前设置表格并在循环退出后关闭。

于 2013-07-24T15:28:30.707 回答