您好，我正在一个项目中使用这个file-uploader类，但是我不断遇到此错误：
**Notice:** Undefined index: filename in C:\xampp\htdocs\proceskontrol\partials\newtype.php on line 8
有什么想法可以解决吗？
我99.9％的人认为我的表格有帮助，但我看不到。 这个班不是我的，是从我学校的老师那里得到的。
newtype.php这是我的表单页面：
<?php
$fileUploader = new FileUploader("../assets/img/type_img/");
if (isset($_POST["btn_type_send"]) && !empty($_POST["btn_type_send"])) {
$newfile = $fileUploader->fileUpload($_FILES['filUpload'], 250, 250);
$error = [];
$prodId = $products->newType($_POST, $newfile['filename']);
if ($newfile['success'] == true){
$notification->setNewProductNotificationSuccess();
$success = '<div class="alert success" data-dismiss="alert" id="myAlert">
<a href="#" class="close">×</a>
<i class="glyphicon glyphicon-warning-sign"></i>
Product '.$_POST['name'].' is created!
</div>';
} else {
echo $newfile['msg'];
}
}
?>
<div class="page-body">
<?=@$success?>
<div class="col-md-8 offset-2">
<form name="filUpload" action="#" method="post" enctype="multipart/form-data">
<div class="form-group">
<label for="name">Navn</label>
<?=@$error['name']?>
<input type="text" name="name" id="name" class="form-control" value="<?= @$_POST['name'] ?>">
</div>
<!-- Image upload card start -->
<div class="card">
<div class="card-header">
<h5>Billede Upload</h5>
</div>
<div class="card-block">
<div class="sub-title">Vælg et billede</div>
<input type="file" name="filUpload" id="filer_input" multiple="multiple">
</div>
</div>
<!-- Image upload card end -->
<div class="input-group">
<input type="submit" style="margin-bottom: 15px; z-index: 5" class="btn btn-success" value="Submit" name="btn_type_send" />
</div>
</form>
</div>
</div>
FileUploader.php这是我的课程：
<?php
class FileUploader{
private $_errors = [
1 => "The uploaded file exceeds the upload_max_filesize directive in php.ini",
2 => "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form",
3 => "The uploaded file was only partially uploaded",
4 => "No file was uploaded",
6 => "Missing a temporary folder. Introduced in PHP 5.0.3",
7 => "Failed to write file to disk. Introduced in PHP 5.1.0",
8 => "A PHP extension stopped the file upload. PHP does not provide a way to ascertain which extension caused the file upload to stop; examining the list of loaded extensions with phpinfo() may help. Introduced in PHP 5.2.0."
];
private $_fileFolder;
private $_thumbFolder;
public $mimetype = [
'image/png',
'image/jpeg',
'image/jpg',
'image/gif'
];
protected $currentFile = NULL;
// try to avoid using 0777
public function __construct($fileFolder, $thumbFolder = null)
{
$this->_fileFolder = $fileFolder;
if(!file_exists($this->_fileFolder)){
mkdir($this->_fileFolder, 0777, true);
}
if($thumbFolder === null){
$this->_thumbFolder = $fileFolder . 'thumb/';
}
if(!file_exists($this->_thumbFolder)){
mkdir($this->_thumbFolder, 0777, true);
}
}
/**
* Undocumented function
*
* @param string $fileInput
* @return array
*/
public function fileUpload($fileInput, $maxWidth = null, $maxHeight = null, $quality = null)
{
if(isset($fileInput)) {
// echo "<pre>",print_r($_FILES),"</pre>";
$this->currentFile = $fileInput;
// checking if there is code errors that match our error messages
if(array_key_exists($this->currentFile['error'][0], $this->_errors)){
return [
'success' => false,
'msg' => $this->_errors[$this->currentFile['error'][0]]
];
}
// Checking if the mimetype is allowed
if(!in_array($this->currentFile['type'][0], $this->mimetype)){
return [
'success' => false,
'msg' => "The uploaded file type is not allowed!"
];
}
$newName = time() . '_' . $this->currentFile['name'][0];
if (move_uploaded_file($this->currentFile["tmp_name"][0], $this->_fileFolder . $newName)) {
if($maxWidth !== null && $maxHeight !== null){
if(($this->currentFile['type'][0] === 'image/jpg') || ($this->currentFile['type'][0] === 'image/jpeg')){
if($quality !== null){
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'][0] === 'image/png'){
if($quality !== null){
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'][0] === 'image/gif'){
imagegif($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
return [
'success' => true,
'msg' => "The file ". basename($this->_fileFolder . $newName). " has been uploaded.",
'filename' => $newName
];
} else {
return [
'success' => false,
'msg' => "Sorry, there was an error uploading your file."
];
}
}
}
/**
* Undocumented function
*
* @param string $fileInput
* @return array
*/
public function fileUploadEdit($fileInput, $maxWidth = null, $maxHeight = null, $quality = null)
{
if(isset($fileInput)) {
// echo "<pre>",print_r($_FILES),"</pre>";
$this->currentFile = $fileInput;
// checking if there is code errors that match our error messages
if(array_key_exists($this->currentFile['error'][0], $this->_errors)){
return [
'success' => false,
'msg' => $this->_errors[$this->currentFile['error'][0]]
];
}
// checking if the mime type is allowed
if(!in_array($this->currentFile['type'][0], $this->mimetype)){
return [
'success' => false,
'msg' => "The uploaded file type is not allowed!"
];
}
$newName = time() . '_' . $this->currentFile['name'][0];
if (move_uploaded_file($this->currentFile["tmp_name"][0], $this->_fileFolder . $newName)) {
if($maxWidth !== null && $maxHeight !== null){
if(($this->currentFile['type'][0] === 'image/jpg') || ($this->currentFile['type'][0] === 'image/jpeg')){
if($quality !== null){
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'][0] === 'image/png'){
if($quality !== null){
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'][0] === 'image/gif'){
imagegif($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'][0], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
return [
'success' => true,
'msg' => "The file ". basename($this->_fileFolder . $newName). " has been uploaded.",
'filename' => $newName
];
} else {
return [
'success' => false,
'msg' => "Sorry, there was an error uploading your file."
];
}
}
}
public function fileUploadEditUser($fileInput, $maxWidth = null, $maxHeight = null, $quality = null)
{
if(isset($fileInput)) {
// echo "<pre>",print_r($_FILES),"</pre>";
$this->currentFile = $fileInput;
// checking if there is code errors that match our error messages
if(array_key_exists($this->currentFile['error'], $this->_errors)){
return [
'success' => false,
'msg' => $this->_errors[$this->currentFile['error']]
];
}
// checking if the mimetype is allowed
if(!in_array($this->currentFile['type'], $this->mimetype)){
return [
'success' => false,
'msg' => "The uploaded file type is not allowed!"
];
}
$newName = time() . '_' . $this->currentFile['name'];
if (move_uploaded_file($this->currentFile["tmp_name"], $this->_fileFolder . $newName)) {
if($maxWidth !== null && $maxHeight !== null){
if(($this->currentFile['type'] === 'image/jpg') || ($this->currentFile['type'] === 'image/jpeg')){
if($quality !== null){
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagejpeg($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'] === 'image/png'){
if($quality !== null){
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'], $maxWidth, $maxHeight), $this->_thumbFolder . $newName, $quality);
} else {
imagepng($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
if($this->currentFile['type'] === 'image/gif'){
imagegif($this->resizeImage($this->_fileFolder . $newName, $this->currentFile['type'], $maxWidth, $maxHeight), $this->_thumbFolder . $newName);
}
}
return [
'success' => true,
'msg' => "The file ". basename($this->_fileFolder . $newName). " has been uploaded.",
'filename' => $newName
];
} else {
return [
'success' => false,
'msg' => "Sorry, there was an error uploading your file."
];
}
}
}
/**
* @param $filename
* @param $mime
* @param $max_width
* @param $max_height
* @return resource
*/
private function resizeImage($filename, $mime, $max_width, $max_height)
{
list($orig_width, $orig_height) = getimagesize($filename);
$width = $orig_width;
$height = $orig_height;
# taller
if ($height > $max_height) {
$width = ($max_height / $height) * $width;
$height = $max_height;
}
# wider
if ($width > $max_width) {
$height = ($max_width / $width) * $height;
$width = $max_width;
}
$image_p = imagecreatetruecolor($width, $height);
imagealphablending($image_p, false);
imagesavealpha($image_p, true);
$transparent = imagecolorallocatealpha($image_p, 255, 255, 255, 127);
imagefilledrectangle($image_p, 0, 0, $width, $height, $transparent);
if(($mime === 'image/jpeg') || ($mime === 'image/jpg')){
$image = imagecreatefromjpeg($filename);
}
if($mime === 'image/png'){
$image = imagecreatefrompng($filename);
}
if($mime === 'image/gif'){
$image = imagecreatefromgif($filename);
}
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $orig_width, $orig_height);
return $image_p;
}
}
答案 0 :(得分：1)
查看您的代码，特别是这一部分：
}
return [
'success' => true,
'msg' => "The file ". basename($this->_fileFolder . $newName). " has been uploaded.",
'filename' => $newName
];
} else {
return [
'success' => false,
'msg' => "Sorry, there was an error uploading your file."
];
}
文件上传失败时，您不会返回任何filename索引，因此，很可能您的上传失败了，您没有在访问filename之前对其进行了检查。
您应在访问filename之前检查错误，或返回空的filename索引，即：
$newfile = $fileUploader->fileUpload($_FILES['filUpload'], 250, 250);
$error = [];
if ($newfile['success'] == true){
$prodId = $products->newType($_POST, $newfile['filename']);
// ...
} else {
echo $newfile['msg'];
}