PHP如果語句在取數組中

Question

我有一個PHP代碼，通過從同一頁發送的AJAX請求生成下表。

mysql查詢在「今天」的7天範圍內提取數據。

獲取的數據將被附加到表的tbody中，如下所示。

我的代碼是：

$result = mysqli_query($con," SELECT * FROM `BIMTECH_academy_2016_classes` 
WHERE `RealDate` BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 7 DAY) 
ORDER BY RealDate ASC, RealFrom ASC; "); 

    $html = ""; // a variable 
    while($row = mysqli_fetch_array($result)) 
    { 
     $html.= "<tr>"; 
      $html.= "<td colspan='4' id='date'>" . $row['Date'] . "</td>"; 
     $html.= "</tr>"; 
     $html.= "</tr>"; 
      $html.= "<td>" . $row['CourseName'] . "</td>"; 
      $html.= "<td>" . $row['From'] . "</td>"; 
      $html.= "<td>" . $row['To'] . "</td>"; 
      $html.= "<td>" . $row['InstructorName'] . "</td>"; 
      //$html.= "<td>" . $row['ClassNumber'] . "</td>"; 
     $html.= "</tr>"; 
    } 

結果是正確的，但是，我所要做的是讓重複的日期（S）的紅色如下圖所示的第二個屏幕。

而且我需要添加到表中的其他日子，沒有內容，所以我終於看到七天表（有的用數據，和其他人沒有「關天」）

任何想法？

Answer 1

應該做ü要

$result = mysqli_query($con," SELECT * FROM `BIMTECH_academy_2016_classes` 
WHERE `RealDate` BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 7 DAY) 
ORDER BY RealDate ASC, RealFrom ASC; "); 

    $html = ""; // a variable 
    $lastDate; 
    while($row = mysqli_fetch_array($result)) 
    { 
     if($lastDate != $row['Date']) 
     { 
       $lastDate = $row['Date']; 
       $html.= "<tr>"; 
        $html.= "<td colspan='4' id='date'>" . $row['Date'] . "</td>"; 
       $html.= "</tr>"; 
     } 
     $html.= "<tr>"; 
      $html.= "<td>" . $row['CourseName'] . "</td>"; 
      $html.= "<td>" . $row['From'] . "</td>"; 
      $html.= "<td>" . $row['To'] . "</td>"; 
      $html.= "<td>" . $row['InstructorName'] . "</td>"; 
      //$html.= "<td>" . $row['ClassNumber'] . "</td>"; 
     $html.= "</tr>"; 
    }