上传多个图像到db与2个文本字段

好吧我有一个困境。我希望能够上传最多六个图像和两个文本字段（标题和desc）到数据库...实际上让我纠正自己，我想存储在图像的名称，所以我可以得到后来的照片。我知道如何将多个图片上传到一个文件夹，并且我知道如何将行插入到数据库中，但是我无法弄清楚如何组合这两者。如果将其与图像工作结合起来，如果其中一个文件存在问题，将取消整个过程？上传多个图像到db与2个文本字段

my db setup is simply id |标题| desc | img1 | img2 | img3 | img4 | img5 | img6

我写到目前为止代码：

if (isset($_POST['formsubmitted'])) { //if form was submitted 
$error = array();//Declare An Array to store any error message 

if (empty($_POST['title'])) {//if no name has been supplied 
    $error[] = 'Please enter a title for your post.';//add to array "error" 
    $show_errors = 'show'; 
} else { 
    $title = $_POST['title'];//else assign it a variable 
} 



if (empty($_POST['desc'])) { 
    $error[] = 'Please enter a short desc of your post.';//add to array "error" 
    $show_errors = 'show'; 
} else { 
    $desc = $_POST['desc'];//else assign it a variable 
} 



    if (empty($error)){ //if no error, insert into db 

$new_post = "INSERT INTO `posts` (`title`, `desc`) VALUES ('$title', '$desc')"; 
    $result = mysql_query($new_post) or die(mysql_error('error inserting post')); 

} 


}

那么HTML是：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>Untitled Document</title> 
</head> 

<body> 
<?php if (isset($show_errors)) { 
    //show user the errors if form cant be submitted 
    echo '<div> <ol>'; 
     foreach ($error as $key => $values) { echo ' <li>'.$values.'</li>'; } 
     echo '</ol></div><br />'; }?> 

<br /> 
<form method="post" id="newpost" action="" enctype="multipart/form-data"> 
<div><input name="title" type="text" value="" class="title_input"></div> 
<div><textarea id="area4" cols="40" rows="5" name="desc" class="desc_texbox"></textarea></div> 
<div><input type="file" name="images1"></div> 
<div><input type="file" name="images2"></div> 
<div><input type="file" name="images3"></div> 
<div><input type="file" name="images4"></div> 
<div><input type="file" name="images5"></div> 
<div><input type="file" name="images6"></div> 
<input type="hidden" name="formsubmitted" value="TRUE" /> 
<input type="submit" id="upload" value="Upload"> 
</form> 
</body> 
</html>

来源

2012-04-14 Keezy

我会建议通过将图像移动到图像表而不是在posts表中设置重复字段来规范化数据结构。 – nnichols 2012-04-14 15:55:00

这并没有完成，但它应该让你朝着正确的方向前进。请注意，我已经根据更改文件字段的方式将其重命名为<input type="file" name="images[1]" />，以便它们可以作为数组进行处理。

<?php 

error_reporting(E_ALL); 
ini_set('display_errors', true); 

$db = new PDO('mysql:dbname=test;host=127.0.0.1', 'user', 'pass'); 


if (isset($_POST['formsubmitted'])) { //if form was submitted 

    $error_array = array();//Declare An Array to store any error message 

    // check all images for upload errors 
    // you should probably add extra file validation here - check image type etc 
    $upload_error = false; 
    foreach($_FILES['images']['error'] as $error) { 
     if ($error != 0 && $error != 4) { 
      $upload_error = true; 
     } 
    } 

    if ($upload_error) { 
     $error_array[] = 'One of the image uploads failed!'; 
    } 


    if (empty($_POST['title'])) {//if no name has been supplied 
     $error_array[] = 'Please enter a title for your post.';//add to array "error" 
    } else { 
     $title = $_POST['title'];//else assign it a variable 
    } 

    if (empty($_POST['desc'])) { 
     $error_array[] = 'Please enter a short desc of your post.';//add to array "error" 
    } else { 
     $desc = $_POST['desc'];//else assign it a variable 
    } 

    if (empty($error_array)){ //if no error, insert into db 

     $new_post = "INSERT INTO `posts` (`title`, `desc`) VALUES (?, ?)"; 
     $stmt = $db->prepare($new_post); 
     $stmt->execute(array($title, $desc)); 

     $new_post_id = $db->lastInsertId(); 

     // now start processing the images 
     $image_sql = "INSERT INTO `post_images` (`post_id`, `img_name`) VALUES (?, ?)"; 
     $stmt = $db->prepare($image_sql); 

     for ($i = 1; $i <= 6; $i++) { 

      // you need to add some code to vlaidate, move and rename the files 

      // add the files to the db 
      $file_name = $_FILES['images']['name'][$i]; 
      $stmt->execute(array($new_post_id, $file_name)); 

     } 

    } else { 
     print_r($error_array); 
    } 

} 
?>

来源

2012-04-14 16:49:03 nnichols

谢谢！我绝对可以用这个 – Keezy 2012-04-16 11:07:00

我觉得比较好，首先要上传的图片服务器上，如果move_uploaded_file（）函数返回错误，在$ error数组中添加一个值。这样，只有上传成功完成，数据才会被插入到数据库中。

来源

2012-04-14 16:10:49 CoursesWeb

上传多个图像到db与2个文本字段

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