Question

           <?php
include ("db.php");
session_start();

$user = $_SESSION["user"];


if (isset($_POST["submit"])) {
$target_dir = "pics/";
$target_file = $target_dir . basename($_FILES["img"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));



//check if there was an error
if ($uploadOk == 0) {
    echo "The file couldnt be upload, please try again";
} else {
    if (move_uploaded_file($_FILES["img"]["tmp_name"], $target_file)) {
        echo "The file has been uploaded";
    } else {

    echo "Sorry there was a error";
    }
}

    $img = $_FILES['img']['name'];

    $title = $_POST["cardname"];
    $info = $_POST["description"];
    $insta = $_POST["insta"];
    $snap = $_POST["snap"];
    $code = $_POST["code"];
    $bg = $_POST["bg"];
    $discord = $_POST["discord"];

    $sql = "SELECT * FROM cards WHERE code = '".$code."'";

    $result = $conn->query($sql);

    if ($result->num_rows > 0) {
        echo "Please pick a new id, that one is already taken";
    } else {


        $sql = "INSERT INTO cards (title, user, link, code, image, description, likes, snap, insta, yt, bg, discord)
        VALUES ('$title', '$user', '$link', '$code', '$img', '$info', '0', '$snap', '$insta', '$user', '$bg', '$discord')";

        if ($conn->query($sql) === TRUE) {
            echo "New card created!";
        } else {
            echo "There was an error";
        }
    }
}



?>


<!DOCTYPE html>
<html>
<head>
    <!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="main.css">
    <title>Personal cards for your social media or business | SocialCard</title>
    </head>
    <body>
        <style>
            .white {
                color: white !important;
            }
        </style>
    <div class="jumbotron">
        <div class="container text-center">
            <h1 class="big">Cards</h1><br>
            <?php

        $sql3 = "SELECT * FROM cards WHERE user = '$user'";

        $result3 = $conn->query($sql3);

        if($result3->num_rows > 0) {
            //output cards
            while($row  = $result3->fetch_assoc()) {
            ?>   

                <div class="col-sm-4">
                    <div class="card">
                        <div class="card-img-top">
                            <img alt="" src="pics/<?php echo $img; ?>">
                        </div>

                    </div>
                </div>
            </div>



            <?php
            }
        }
        ?>



            <br>


            <?php echo $_SESSION["user"]; ?>
<hr>
<div class="card">
    <div class="card-body text-center">
        <h4>Card Name:</h4>
        <form action="" enctype="multipart/form-data" method="post">
        <br>
        <input type="text" name="cardname">
        <br>
        <br>
        <h4>Profile Image:</h4>
        <input type="file" name="img">
        <br>
        <br>
        <h4>Short info:</h4>
        <input type="text" name="description">
        <br>
        <br>
        <h4>Instagram link:</h4>
        <br>

        <input type="text" name="insta">
        <br>
        <br>
        <h4>Snapchat link:</h4>
        <br>
        <input type="text" name="snap">
        <br>
        <br>
        <h4>Discord Tag:</h4>
        <br>
        <input type="text" name="discord">
        <br>
        <br>
        <h4>Background Color:</h4>
        <br>
        <input type="text" name="bg" placeholder="#hexcode">
        <br>
        <br>
        <h4>Unique Id:</h4>
        <br>
        <input type="text" placeholder="Create One :), remember it" name="code" required>
        <br>
        <br>
        <button type="submit" name="submit" class="btn btn-lg btn-primary">Create Card</button>
        <p>To get to your card go to: social-card.pw/view.php?code=youruniqueid</p>
        </form>
    </div>
</div>
</div>
        </div>
    </div>
    <div class="container">
        <div class="card bg-dark">
            <div class="card-content white">
                <h1 class="text-center font1">Purchase Premium</h1>
                <p class="text-center">Nothing here yet</p>
<script data-cfasync='false' type='text/javascript' src='//p258030.clksite.com/adServe/banners?tid=258030_546328_0&type=footer&size=37'></script>

            </div>

        </div>
    </div>
    </body>



























</html>

这是我目前的php和html代码，我必须犯一个小错误，因为我每次去看它时我屏幕上显示的唯一东西是顶部的jumbotron，里面有测试“卡”，请帮我！我确定这只是一个小错误，我无法找到答案。

我假设它的PHP代码，如果有人可以帮助那将是伟大的。

Answer 1

假设您的查询实际上正在检索卡片，则显示器不会从返回的结果中获取图像...

   while($row  = $result3->fetch_assoc()) {
    ?>   
        <div class="col-sm-4">
            <div class="card">
                <div class="card-img-top">
                    <img alt="" src="pics/<?php echo $img; ?>">
                </div>
            </div>
        </div>
    </div>
    <?php
    }

使用$img图片并非使用$row中的数据。

你应该有类似......

echo $row['image'];

我还不确定循环中是否有额外的</div>，您可能需要将最后一个</div>移出循环，但请使用生成的源检查。

Answer 2

将session_start()放在第一行，即：

session_start();
include ("db.php");

session_start();必须在任何其他行或操作之前启动。

   <div class="jumbotron">
        <div class="container text-center">
            <h1 class="big">Cards</h1><br>
            <?php

    $sql3 = "SELECT * FROM cards WHERE user = '$user'";

    $result3 = $conn->query($sql3);

    if($result3->num_rows > 0) {
        //output cards
        while($row  = $result3->fetch_assoc()) {
        ?>   

            <div class="col-sm-4">
                <div class="card">
                    <div class="card-img-top">
                        <img alt="" src="pics/<?php echo $row['image']; ?>">
                    </div>

                </div>
            </div>
        <?php
        }
    }
    ?>

检查所有结束div

我的php和html代码有什么问题？

2 个答案: