PHP上传无法正常工作，可能是权限问题 [英] PHP upload not working, maybe permission issues
问题描述
我需要在我的站点上创建一个上传页面，我使用的是Altervista试用服务器. 我使用了教程 http://www.w3schools.com/php/php_file_upload.asp 但上传无效.也许，当我阅读这是一个权限问题时，但是我对如何更改文件夹的权限一无所知.
I need to make an upload page in my site, I'm using an altervista trial server. I used the tutorial http://www.w3schools.com/php/php_file_upload.asp but the upload doesn't work. maybe, as I read is a permission issue, but I don't have the slightest idea on how to change the permissions of my folders.
是否可以在可上传文件中添加pdf?
Is it possible to add also pdf in the uploadable files?
谢谢
uploadpage.html
uploadpage.html
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Documento senza titolo</title>
<link href="valsilehome.css" rel="stylesheet" type="text/css">
</head>
<body>
<form action="/tmp/upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
</body>
</html>
upload.php
upload.php
<?php
$target_dir = "/tmp/uploads";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
推荐答案
从w3学校开始，他们为示例创建了许多条件.但是我们不需要严格遵循它.我们只有在需要时才能使用它.
As of w3 schools, they have created many conditions for the example. But we don't need follow it strictly. We can use it only if we needed.
这是您可以拥有的最小代码
Here's the Minimal Code that you can have
<!DOCTYPE html>
<html>
<body>
<form action="" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
</body>
</html>
<?php
if (isset($_POST['submit']))
{
echo 'succesfully uploaded';
$structure = 'uploadedfiles/';
$target_file = $structure.basename($_FILES["fileToUpload"]["name"]);
move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file);
}
?>
如果使用上述代码，则应在保存该文件的文件夹中创建一个名为uploadedfiles的文件夹.
If you use the above code you should create a folder named as uploadedfiles in the folder where you keep this file.
否则，如果需要为每个文件上传创建每个文件夹，则应进行编码.它将每次创建文件的名称作为文件夹.
Else if you need to create each folder for each file upload then you should code.. It will create the file's name as folder each time.
<!DOCTYPE html>
<html>
<body>
<form action="" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
</body>
</html>
<?php
if (isset($_POST['submit']))
{
echo 'succesfully uploaded';
$structure = $_FILES["fileToUpload"]["name"];
if (!mkdir($structure, 777, true))
{}
$target_file = $structure.basename($_FILES["fileToUpload"]["name"]);
move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file);
}
?>
这篇关于PHP上传无法正常工作，可能是权限问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
