PHP/MySQL 上传带有注释的图像并打印

Question

我正在做一个网站，非常非常简单顺便说一句，它已经完成了，但是有些问题困扰了我!这是 3 页:

index.php http://pastebin.com/whQfhPEy
admin.php http://pastebin.com/pQCsphCa
上传.php:

<?php
mysql_connect("localhost", "xxxx", "xxxx");
mysql_select_db("xxxx");

$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
    $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
    if($check !== false) {
        echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        echo "File is not an image.";
        $uploadOk = 0;
    }
}
// Check if file already exists
if (file_exists($target_file)) {
    echo "Sorry, file already exists.";
    $uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
    echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}
?>

index.php 打印通过 admin.php 上传的消息/图像
admin.php用于提交数据/图像，以便可以在index.php上显示
当在 admin.php 上按下提交按钮时调用 upload.php

问题:我需要修改 upload.php 以某种方式在每个上传的图像上放置一个 ID，以便可以使用其 ID 在 index.php 上打印它，应该如何？

Answer 1

问题 1:主要问题是在 admin.php 上填写表单并单击“提交”后，它不会将数据插入我的数据库表中，我缺少什么？:

您发送了错误的 SQL。变更value至values

改变

mysql_query("INSERT INTO BlogData ('title', 'category', 'content') VALUE('$title', '$category', '$content')");

至

mysql_query("INSERT INTO BlogData (`title`, `category`, `content`) VALUES('$title', '$category', '$content')");

问题2:我想在表单上添加“图片上传”选项，该如何操作？ http://www.w3schools.com/php/php_file_upload.asp

问题3:在index.php上，所有条目都被“打印”，我如何显示我通过表单上传的图像？

从数据库中获取图像路径并添加<img/>就这样。

还有mysql_函数已被弃用。 使用mysqli_相反。