我想在我的主页上上传图片。 我正在使用 w3schools 的脚本来执行此操作:
这是upload.html
<!DOCTYPE html>
<html>
<body>
<form action="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>
这是 upload.php
<?php
$target_dir = "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.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType !="jpeg" && $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$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.";
}
}
?>
我已经创建了一个文件夹/var/www/uploads/ 当尝试上传 3KB jpeg 时，我得到以下输出:
File is an image - image/jpeg.
Sorry, there was an error uploading your file.
Array ( [fileToUpload] => Array ( [name] => Test Bild Website Upload.jpg [type] => image/jpeg [tmp_name] => /tmp/phpyxW0TX [error] => 0 [size] => 2999 ) )
我是 php 初学者，真的不知道问题是什么。 也许有人可以帮助我解决这个问题。 :)
最佳答案
检查是否可以通过在命令行执行以下命令来上传文件:
chmod -R 777/var/www/uploads/然后尝试上传一些内容。如果有效，您就知道这是权限问题。但您不想将上传文件夹保留为 777 权限(允许所有人访问)
如果是权限问题，我喜欢这样做:
chown [您的用户名]:www-data -R/var/www/uploads/chmod -R 775/var/www/uploads/
这会将文件夹的组分配更改为 www-data，这通常是 apache 在 Ubuntu Linux 服务器上运行的方式。
关于php 上传脚本不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31837561/