如何在多行中插入多个图像？我已经通过下面的查询插入了一个图像。现在我想再插入一个图像，名为“imagetwo”的行。
如何针对两行修改此查询图片和图片
<?php
public function insertName($data,$file){
$name = $data['name'];
$permited = array('jpg', 'jpeg', 'png', 'gif');
$file_name = $file['image']['name'];
$file_size = $file['image']['size'];
$file_temp = $file['image']['tmp_name'];
$div = explode('.', $file_name);
$file_ext = strtolower(end($div));
$unique_image = substr(md5(time()), 0, 10).'.'.$file_ext;
$uploaded_image = "upload/".$unique_image;
if ($name == "") {
$msg = 'Name Field Must Not Be Empty';
return $msg;
} else {
move_uploaded_file($file_temp, $uploaded_image);
$stmt = $this->pdo->prepare("INSERT INTO name(`name`, `image`) VALUES (:name, :uploaded_image)");
$stmt->bindParam(":name", $name);
$stmt->bindParam(":uploaded_image", $uploaded_image);
$stmt->execute();
// return $stmt;
if ($stmt) {
$msg = 'Name Inserted Secessfully';
return $msg;
} else {
$msg = 'Name Not Inserted Secessfully';
return $msg;
}
}
}
答案 0 :(得分：-1)
我想你没有看过评论。虽然我决定以程序的方式向你展示一个例子。应该很容易使函数适应代码体系结构（可能是MVC）。
起点 - 最重要的一点 - 是$_FILES数组的规范化。 PSR-7: 1.6 Uploaded files中描述的最好（也很简单） - 如果您阅读并理解前两段和前两个代码块就足够了。在规范化之后，可以直观地应用其余步骤：每个文件都上传并保存为db表中的记录（如果在上载过程中没有发生错误）。
代码尝试上传多个文件。如果在上传文件（来自许多文件）期间出现问题 - 例如最多超出大小，或无效扩展等等 - 然后显示该文件的相应错误消息，并且不保存文件 - 既不在文件系统中也不在数据库中。保存其上载过程不会导致错误的其他文件。换句话说：仅当成功上载并保存所有文件时，才会显示成功消息。否则，将显示（仅）“制造麻烦”文件的错误消息列表。
您可以按原样运行代码。所有文件都位于同一目录中。
我不知道你的$name参数是什么。所以我只使用了文件名。
<强> upload.php的
<?php
require_once 'config.php';
require 'connection.php';
require_once 'functions.php';
$allFilesUploadedAndSaved = FALSE;
// Operations upon form submission.
if (isset($_POST['submit'])) {
if ($_FILES) {
// Normalize the posted files array.
$normalizedFiles = normalizeUploadedFiles($_FILES['files']);
// Upload and save each file.
foreach ($normalizedFiles as $normalizedFile) {
$uploadedAndSaved = uploadAndSaveFile($connection, $normalizedFile);
if ($uploadedAndSaved !== TRUE) {
$errors[] = $uploadedAndSaved;
}
}
if (!isset($errors)) {
$allFilesUploadedAndSaved = TRUE;
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes" />
<meta charset="UTF-8" />
<!-- The above 3 meta tags must come first in the head -->
<title>Demo - Upload multiple files</title>
<!-- CSS assets -->
<link href="upload.css" type="text/css" rel="stylesheet">
</head>
<body>
<div class="page-container">
<form action="" method="post" enctype="multipart/form-data">
<div class="messages">
<?php
if (isset($errors)) {
foreach ($errors as $error) {
?>
<div class="message danger">
<?php echo $error; ?>
</div>
<?php
}
} elseif ($allFilesUploadedAndSaved) {
?>
<div class="message success">
All files successfully uploaded.
</div>
<?php
}
?>
</div>
<div class="form-group">
<label for="myFiles">My Files</label>
<input type="file" id="myFiles" name="files[]" multiple class="form-control">
</div>
<div class="form-group">
<button type="submit" id="submit" name="submit" value="upload">
Upload
</button>
</div>
</form>
</div>
</body>
</html>
<强>的functions.php
<?php
/**
* Normalize the uploaded files array.
*
* NB: Read the link!
*
* @link https://www.php-fig.org/psr/psr-7/#16-uploaded-files PSR-7: 1.6 Uploaded files.
* @param array $files Uploaded files array.
* @return array Normalized files array.
*/
function normalizeUploadedFiles($files) {
$normalizedFiles = [];
foreach ($files as $filesKey => $filesItem) {
foreach ($filesItem as $itemKey => $itemValue) {
$normalizedFiles[$itemKey][$filesKey] = $itemValue;
}
}
return $normalizedFiles;
}
/**
* Upload and save an uploaded file.
*
* @param PDO $connection Db connection.
* @param array $file The file to upload.
* @return string|TRUE TRUE if the file upload is successful, a corresponding error message otherwise.
*/
function uploadAndSaveFile($connection, $file) {
$name = $file['name'];
$type = $file['type'];
$tmpName = $file['tmp_name'];
$error = $file['error'];
$size = $file['size'];
/*
* Check for upload errors.
*
* @todo Return a description message corresponding to the specific error code!
* @link https://secure.php.net/manual/en/features.file-upload.errors.php Error Messages Explained.
*/
if ($error !== UPLOAD_ERR_OK) {
return sprintf('An error occured regarding the file %s. Error code: %s'
, $name
, $error
);
}
// Validate the file size.
if ($size > UPLOAD_MAX_FILE_SIZE) {
return sprintf('The size of the file "%s" exceeds the maximal allowed size (%s Byte).'
, $name
, UPLOAD_MAX_FILE_SIZE
);
}
// Validate the file type.
if (!in_array($type, UPLOAD_ALLOWED_MIME_TYPES)) {
return sprintf('The file "%s" is not of a valid MIME type. Allowed MIME types: %s.'
, $name
, implode(', ', UPLOAD_ALLOWED_MIME_TYPES)
);
}
$nameParts = explode('.', $name);
$extension = strtolower(end($nameParts));
// @todo Find a better way to generate a unique filename!
$uniqueName = substr(md5(time()), 0, 10) . '.' . $extension;
$uploadPath = rtrim(UPLOAD_DIR, '/') . '/' . $uniqueName;
// Create the upload directory.
createDirectory(rtrim(UPLOAD_DIR, '/'));
// Move the file to the new location.
if (!move_uploaded_file($tmpName, $uploadPath)) {
return sprintf('The file "%s" could not be moved to the specified location.'
, $name
);
}
// Save the file.
saveFile($connection, $name, $uploadPath);
return TRUE;
}
/**
* Save a file.
*
* @param PDO $connection Db connection.
* @param string $name File name.
* @param string $path File path.
* @return void
*/
function saveFile($connection, $name, $path) {
$sql = 'INSERT INTO name (
name,
image
) VALUES (
:name,
:image
)';
$statement = $connection->prepare($sql);
$statement->execute([
':name' => $name,
':image' => $path,
]);
}
/**
* Create a directory at the specified path.
*
* @param string $path Directory path.
* @return void
*/
function createDirectory($path) {
if (file_exists($path) && !is_dir($path)) {
throw new UnexpectedValueException(
'The upload directory can not be created because a file having the same name already exists!'
);
}
if (!is_dir($path)) {
mkdir($path, 0777, TRUE);
}
}
<强>的config.php
<?php
define('UPLOAD_DIR', 'upload/');
define('UPLOAD_MAX_FILE_SIZE', 10485760); // 10MB.
define('UPLOAD_ALLOWED_MIME_TYPES', [
'image/jpeg',
'image/png',
'image/gif',
]);
<强> connection.php
<?php
/*
* This page contains the code for creating a PDO connection instance.
*/
// Db configs.
define('HOST', 'localhost');
define('PORT', 3306);
define('DATABASE', 'tests');
define('USERNAME', 'root');
define('PASSWORD', 'root');
define('CHARSET', 'utf8');
// Error reporting.
error_reporting(E_ALL);
ini_set('display_errors', 1); /* SET IT TO 0 ON A LIVE SERVER! */
/*
* Create a PDO instance as db connection to db.
*
* @link http://php.net/manual/en/class.pdo.php
* @link http://php.net/manual/en/pdo.constants.php
* @link http://php.net/manual/en/pdo.error-handling.php
* @link http://php.net/manual/en/pdo.connections.php
*/
$connection = new PDO(
sprintf('mysql:host=%s;port=%s;dbname=%s;charset=%s', HOST, PORT, DATABASE, CHARSET)
, USERNAME
, PASSWORD
, [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_EMULATE_PREPARES => FALSE,
PDO::ATTR_PERSISTENT => FALSE,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
]
);
<强> upload.css
body {
margin: 0;
padding: 20px;
}
.page-container {
padding: 30px;
background-color: #f4f4f4;
}
.messages {
margin-bottom: 20px;
}
.message {
padding: 10px;
margin-bottom: 10px;
border: 1px solid transparent;
}
.success {
color: #3c763d;
border-color: #d6e9c6;
background-color: #dff0d8;
}
.danger {
color: #a94442;
border-color: #ebccd1;
background-color: #f2dede;
}
.warning {
color: #8a6d3b;
border-color: #faebcc;
background-color: #fcf8e3;
}
form {
width: 400px;
}
.form-group {
margin-bottom: 20px;
}
.form-group label {
display: inline-block;
min-width: 40px;
}
button {
padding: 7px 10px;
margin: 10px;
display: block;
color: #fff;
font-size: 14px;
border: none;
background-color: #8daf15;
}
答案 1 :(得分：-1)
感谢您的帮助和评论Dakis，tadman和yivi
我确实通过此代码解决了这个问题。
public function insertName($data,$file){
$name = $data['name'];
$permited = array('jpg', 'jpeg', 'png', 'gif');
$file_name = $file['image']['name'];
$file_size = $file['image']['size'];
$file_temp = $file['image']['tmp_name'];
$div = explode('.', $file_name);
$file_ext = strtolower(end($div));
$unique_image = substr(md5(time()), 0, 10).'.'.$file_ext;
$uploaded_image = "upload/".$unique_image;
// $permited = array('jpg', 'jpeg', 'png', 'gif');
$file_name_two = $file['imagetwo']['name'];
$file_size_two = $file['imagetwo']['size'];
$file_temp_two = $file['imagetwo']['tmp_name'];
$div_two = explode('.', $file_name_two);
$file_ext_two = strtolower(end($div_two));
$unique_image_two = substr(md5(time()), 0, 11).'.'.$file_ext_two;
$uploaded_image_two = "upload/".$unique_image_two;
if ($name == "") {
$msg = '<div class="alert alert-success fade in alert-dismissible" style="margin-top:18px;">
<a href="#" class="close" data-dismiss="alert" aria-label="close" title="close">×</a>
<strong>Warning!</strong> Name Field Must Not Be Empty
</div>';
return $msg;
} else {
move_uploaded_file($file_temp, $uploaded_image);
move_uploaded_file($file_temp_two, $uploaded_image_two);
$stmt = $this->pdo->prepare("INSERT INTO name(`name`, `image`, `imagetwo`) VALUES (:name, :uploaded_image, :uploaded_image_two)");
$stmt->bindParam(":name", $name);
$stmt->bindParam(":uploaded_image", $uploaded_image);
$stmt->bindParam(":uploaded_image_two", $uploaded_image_two);
$stmt->execute();
// return $stmt;
if ($stmt) {
$msg = '<div class="alert alert-success fade in alert-dismissible" style="margin-top:18px;">
<a href="#" class="close" data-dismiss="alert" aria-label="close" title="close">×</a>
<strong>Success!</strong> Name Inserted Secessfully
</div>';
return $msg;
} else {
$msg = '
<div class="alert alert-danger fade in alert-dismissible">
<a href="#" class="close" data-dismiss="alert" aria-label="close" title="close">×</a>
<strong>Danger!</strong> Name Not Inserted Secessfully
</div>';
return $msg;
}
}
} // End Slider Insert Function