我的上传代码是这样的。我用postdata将图像提交给它。我想让文件选择框接受多个picute，并让它在后端工作。我可以让标题位置在我自己的工作正常，但使用一组文件已经证明是困难的，即使我花了几个小时在堆栈溢出和谷歌。如果有人能告诉我怎么做，我会喜欢它。
if($_SERVER['REQUEST_METHOD'] == 'POST') {
$browse = $_POST["browse"];
preg_match('/\.([a-zA-Z]+?)$/', $_FILES['userfile']['name'], $matches);
if(in_array(strtolower($matches[1]), $accepted)) {
if($_FILES['userfile']['size'] <= $maxsize) {
$newname = md5_file($_FILES['userfile']['tmp_name']).'.'.$matches[1];
$browse = $_POST["browse"];
if ($browse == "1") {
$filedir = 'img';
} else if ($browse == "2") {
$filedir = 'zega';
} else if ($browse == "3") {
$filedir = 'noimg';
} else if ($browse == "4") {
$filedir = 'adult';
} else if ($browse == "5") {
$filedir = 'temp';
} else {
$filedir = 'noimg';
}
move_uploaded_file($_FILES['userfile']['tmp_name'], $filedir.'/'.$newname);
$path = $filedir.'/'.$newname;
if (strpos($path,'jpg') !== false){
$img = imagecreatefromjpeg ($path);
imagejpeg ($img, $path, 100);
imagedestroy ($img);
} else if (strpos($path,'gif') !== false){
$img = imagecreatefromgif ($path);
imagegif ($img, $path, 100);
imagedestroy ($img);
} else if (strpos($path,'bmp') !== false){
$img = imagecreatefrombmp ($path);
imagebmp ($img, $path, 100);
imagedestroy ($img);
}
header("Location: index.php?p=uploaded&img=$newname");
} else
header("Location: index.php?p=error&num=2");
} else
header("Location: index.php?p=error&num=1");
}
?>
答案 0 :(得分：1)
foreach($_FILES as $key_file=>$file_info){
//your code here instead $_FILES['userfile']['tmp_name'] use $file_info['tmp_name']
}
答案 1 :(得分：1)
它还具有其他能力，例如： - 如果您上传多个具有相同名称的文件，它将自动更改其名称 - 您可以添加允许的类型 -set上传文件的最大大小 ...
类上传{
protected $_uploaded = array();
protected $_destination_upload_folder;
//Constraint
protected $_max_upload_size = 512000;
protected $_permitted_files = array('image/gif', 'image/png', 'image/jpg', 'image/jpeg', 'image/pjpeg');
protected $_error_messages = array();
protected $_renamed_file = false;
public function __construct($input_upload_path) {
if(!is_dir($input_upload_path) || !is_writable($input_upload_path)){
throw new Exception("$input_upload_path must be a valid,writable path!");
}
$this->_destination_upload_folder = $input_upload_path;
$this->_uploaded = $_FILES;
}
protected function checkError($fileName, $error){
switch ($error) {
case 0:
return true;
case 1:
case 2:
$this->_error_messages[] = "$fileName exceeds maximum file size : "
.$this->getMaxSize();
return true;
case 3:
$this->_error_messages[] = "Error while uploading $fileName.please try again.";
return false;
case 4:
$this->_error_messages[] = "No file selected.";
return false;
default:
$this->_error_messages[] = "System Error uploading $fileName.Please contact administrator.";
return false;
return false;
}
}
protected function checkSize($fileName, $size){
if($size == 0){
return false;
}else if($size > $this->_max_upload_size){
$this->_error_messages[] = "$fileName exceeds maximum size : ".
$this->_max_upload_size;
return false;
}else{
return true;
}
}
protected function checkType($fileName, $type){
if(!in_array($type, $this->_permitted_files)){
$this->_error_messages[] = 'This type of file is not allowed for uploading '
.'.please upload permitted files.';
return false;
}else{
return true;
}
}
public function checkName($input_file_name, $overwrite)
{
$input_file_name_without_spaces = str_replace(' ', '_', $input_file_name);
if($input_file_name_without_spaces != $input_file_name){
$this->_renamed_file = true;
}
if(!$overwrite){
$all_files_in_upload_directory = scandir($this->_destination_upload_folder);
if(in_array($input_file_name_without_spaces, $all_files_in_upload_directory)){
$dot_position = strrpos($input_file_name_without_spaces, '.');
if($dot_position){
$base = substr($input_file_name_without_spaces, 0, $dot_position);
$extension = substr($input_file_name_without_spaces, $dot_position);
}else{
$base = substr($input_file_name_without_spaces);
$extension = '';
}
$i = 1;
do{
$input_file_name_without_spaces = $base.'_'.$i++.$extension;
}while(in_array($input_file_name_without_spaces, $all_files_in_upload_directory));
$this->_renamed_file = true;
}
}
return $input_file_name_without_spaces;
}
protected function getMaxSize(){
return number_format(($this->_max_upload_size)/1024, 1).'kb';
}
protected function isValidMime($types)
{
$also_valid_mimes = array('application/pdf', 'text/plain', 'text/rtf');
$all_valid_mimes = array_merge($this->_permitted_files, $also_valid_mimes);
foreach($types as $type){
if(!in_array($type, $all_valid_mimes)){
throw new Exception("$type is not a valid permitted mime type!");
}
}
}
public function addPermittedType($input_type_name)
{
$input_type_name_array = (array)$input_type_name;
$this->isValidMime($input_type_name_array);
$this->_permitted_files = array_merge($this->_permitted_files, $input_type_name_array);
}
protected function processFile($fileName, $error, $size, $type, $tmp_name, $overwrite)
{
$check_upload_error = $this->checkError($fileName, $error);
if($check_upload_error){
$check_uploaded_file_type = $this->checkType($fileName, $type);
$check_uploaded_file_size = $this->checkSize($fileName, $size);
if($check_uploaded_file_type && $check_uploaded_file_size){
$new_uploaded_file_name = $this->checkName($fileName, $overwrite);
$upload_result = move_uploaded_file($tmp_name, $this->_destination_upload_folder.$new_uploaded_file_name);
if($upload_result){
$messages = $new_uploaded_file_name.' uploaded successfully! <br >';
if($this->_renamed_file){
$messages .= ' and renamed successfully!';
}
$this->_error_messages[] = $messages;
} else {
$this->_error_messages[] = 'Could`nt upload '.$fileName;
}
}
}
}
public function move($overwrite = FALSE){
$file = current($this->_uploaded);
if(is_array($file['name'])){
foreach($file['name'] as $index => $filename){
$this->_renamed_file = false;
$this->processFile($filename, $file['error'][$index],
$file['size'][$index], $file['type'][$index], $file['tmp_name'][$index], $overwrite);
}
}else{
$this->processFile($file['filename'], $file['error'], $file['size'], $file['type']
, $file['tmp_name'], $overwrite);
}
}
public function getErrorMessages(){
return $this->_error_messages;
}
public function setMaxSize($new_upload_size)
{
if(!is_numeric($new_upload_size) || $new_upload_size <= 0){
throw new Exception("new maximum upload size must a number!");
}
$this->_max_upload_size = (int)$new_upload_size;
}
}
$max_upload_size = 1024 * 1024;
if(isset($_POST['upload_button'])){
$destination_upload_folder = 'destination of upload folder here....';
require_once 'Upload class filename...';
try{
$upload = new Upload($destination_upload_folder);
$upload->setMaxSize($max_upload_size);
$upload->addPermittedType('application/pdf');
$upload->move(true);
$result = $upload->getErrorMessages();
}catch(Exception $e){
echo $e->getMessage();
}
}