Question

我在PHP做了一個簡單的靜態悄悄話劇本，我想對發送者的不同顏色的背景和接收器的消息

$sql="SELECT message,timestamp from pm WHERE (from_user='".$_SESSION["username"]."' OR from_user='$touser') AND (to_user='$touser' OR to_user='".$_SESSION["username"]."') ORDER BY timestamp"; 
         $ex=$conn->prepare($sql); 
         $ex->execute(); 
         while($result=$ex->fetch(PDO::FETCH_ASSOC)) 
          { 
           echo "<div class='message-view'>"; 

           echo "<p class='subject'>".$result["message"]."</p>"; 

           echo "</div>"; 
          } 

的分表具有以下屬性（ID ，to_user，FROM_USER，主題，消息，時間戳）

Answer 1

變化：

$sql="SELECT message,timestamp from pm WHERE (from_user='".$_SESSION["username"]."' OR from_user='$touser') AND (to_user='$touser' OR to_user='".$_SESSION["username"]."') ORDER BY timestamp"; 

到

$sql="SELECT message,timestamp,from_user from pm WHERE (from_user='".$_SESSION["username"]."' OR from_user='$touser') AND (to_user='$touser' OR to_user='".$_SESSION["username"]."') ORDER BY timestamp"; 

，然後同時取決於誰是發送者特定的類時檢查：

if ($result['from_user'] == $_SESSION["username"]) 
    echo '<div class="message-view-sender" style="background-color: yellow;">'; 
else 
    echo "<div class='message-view'>";