使用函数

时间:2018-01-17 23:44:11

标签: php mysql forms pdo phpmyadmin

我一直在试图了解如何做这个多图像上传的事情几天了,我无法弄明白。我是新手,所以请不要吝啬。我在实际上寻求帮助之前检查了几个网站。

这是表格的页面

<?php
require_once("photoalbum-common.php");
require_once "lib/dbutils.php";
?>

<!DOCTYPE html>
<html>
<head>
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    <link rel='stylesheet' href='CSS/actors-styles.css'>
    <link rel='stylesheet' href='http://www.w3schools.com/lib/w3.css'>
</head>
<body>
<?php
$pdo = connect();
if ( isset( $_POST['formid']) && $_POST['formid'] == 'fileupload') {
$photoid = addPhotograph( $pdo, $_POST['name'], $_POST['description'], 'self', $_FILES['images']);

    }

?>

<div class='w3-container w3-center'>

<button onclick="document.getElementById('id01').style.display='block'" class="link">Add images</button>
</div>

<div id="id01" class="w3-modal w3-animate-opacity">
  <div class="w3-modal-dialog">
    <div class="w3-modal-content w3-card-4 w3-animate-zoom">
      <header class="w3-container w3-teal"> 
        <a href="" class="w3-closebtn">&times;</a>

        <h2>Upload photograph</h2>
      </header>
      <div class="w3-container">
        <form action='?' method='post' enctype='multipart/form-data' id='photoform' class='w3-container'>
          <div class="w3-group">
<!--            <input type='file' name='uploadfile' class='w3-input'> -->
            <label class="w3-label">Image file</label>
        <input type="file" name="images[]" multiple class='w3-input'/>

          </div>
          <div class="w3-group"> 
            <label class="w3-label">Name</label>  
            <input type='text' name='name' class='w3-input' required>

          </div>
          <div class="w3-group">  
            <label class="w3-label">Description</label> 
            <textarea name='description' class='w3-input' required></textarea>

          </div>
          <input type='hidden' name='formid' value='fileupload'>
          <input type='submit' value='Upload' id='uploadbutton' class='w3-btn'>
        </form>
      </div>
      <footer class="w3-container w3-teal">
        <p></p>
      </footer>
    </div>
  </div>
</div>


</body>
</html>

这里有照片photoalbum-common.php

 function addPhotograph( $pdo, $name, $description, $user, $fileinfo) {
  $stmt = $pdo->prepare("INSERT INTO photographs ( `name`, `description`, `user`) VALUES (?, ?, ?)");
  $stmt->execute( array( $name, $description, $user));
  $photoid = $pdo->lastInsertId();

  $tmp_name = $fileinfo["tmp_name"];
  $name = $photoid."_".$fileinfo["name"];
  $stmt = $pdo->prepare("UPDATE photographs SET `image`=? WHERE `photoid`=?");
  $stmt->execute( array( $name, $photoid));
  $result = move_uploaded_file($tmp_name, "images/$name");
  return $photoid;  
}



function reArrayFiles(&$file_post) {

    $file_ary = array();
    $file_count = count($file_post['name']);
    $file_keys = array_keys($file_post);

    for ($i=0; $i<$file_count; $i++) {
        foreach ($file_keys as $key) {
            $file_ary[$i][$key] = $file_post[$key][$i];
        }
    }

    return $file_ary;
}

我从http://php.net/manual/en/features.file-upload.multiple.php得到的第二个功能,不幸的是,我没有设法做任何事情。我能想到的最好的方法是显示两个没有显示实际图像的上传,因为它们没有上传到数据库。

如果有人可以帮助我或指导我如何使用上面的内容上传多个图像,因为当前内容仅适用于一个图像上传。提前谢谢。

1 个答案:

答案 0 :(得分:0)

它无效,因为您已设置文件数组并使用单个文件执行代码。

请使用以下代码更正:

if(!empty($fileinfo)){
    $total_files = count($fileinfo['name']);        
    for($i = 0 ; $i<$total_files ; $i++)
    {
        $tmp_name = $fileinfo["tmp_name"][$i];
        $name = rand()."_".$fileinfo["name"][$i];
        $result = move_uploaded_file($tmp_name, "images/$name");
    }
}
$tmp_name = $fileinfo["tmp_name"];