Question

我开发了一个简单的上传照片和评论系统。当我为每个使用时，它重复图像。例如，如果对照片有5条评论。它用5个不同的评论重复了5次照片。而不是一个图像5评论。

我希望每条评论都有1张图片。如何在不重复照片的情况下获取每张照片的所有评论？

我使用PDO，这是php代码：

<?php
//This is for the images
$results = $connecDB->prepare("select image,caption,id from gallery order by id desc LIMIT $start, $limit ");
$results->execute(); 
$results = $results->fetchAll();

foreach($results as $results) {
    $pid=$results["id"];

    //This is for the comments
    $re= $connecDB->prepare("select * from comments  where pid = :pid order by id");
    $re->bindParam(':pid', $pid);
    $re->execute(); 

    foreach($re as $re) {
        $name=$re["name"];
        $comment=$re["comment"];
?>

<div class="item" id="item-<?php echo $results['id']?>">
    <p><img src="../upload/images/<?php echo $results['image']?>"  height="500px" width="500px"</p>
    <p><?php echo $results['caption']?></p>
    <div class="large-2 columns small-3"><font color="#3366ff"><?php echo $name?></font></div>
    <div class="large-10 columns"><p><?php echo $comment?></p></div>  
<?php}
}?>

感谢。

Answer 1

你在内部循环中循环所有内容，请尝试这样做。

category

Answer 2

实际上你没有在 $ re 变量中得到结果。执行查询后，您需要 fetchAll 数据。除了你在内在的foreach中循环所有东西。

foreach($results as $results) {
$pid=$results["id"];

//This is for the comments
$re= $connecDB->prepare("select * from comments  where pid = :pid order by id");
$re->bindParam(':pid', $pid);
$re->execute(); 
$comments = $re->fetchAll();

<div class="item" id="item-<?php echo $results['id']?>">
    <p><img src="../upload/images/<?php echo $results['image']?>"  height="500px" width="500px"</p>
    <p><?php echo $results['caption']?></p>
    <div class="large-2 columns small-3"><font color="#3366ff"><?php echo $name?></font></div>
  foreach($comments as $re) {
    $name=$re["name"];
    $comment=$re["comment"];
?>  
    <div class="large-10 columns"><p><?php echo $comment; ?></p></div>  
<?php}
}?>

从PDO中的数据库中获取结果

2 个答案: