php move_uploaded_file()
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php move_uploaded_file()
提问by user1352777
So I'm testing out the move_uploaded_file() php script from the w3schools website http://www.w3schools.com/php/php_file_upload.asp. Here is my code.
所以我正在测试 w3schools 网站http://www.w3schools.com/php/php_file_upload.asp 上的 move_uploaded_file() php 脚本。这是我的代码。
if ($_FILES["file"]["size"] < 2000000)
{
if ($_FILES["file"]["error"] > 0)
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
if (file_exists("/var/www/upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
elseif(move_uploaded_file($_FILES["file"]["tmp_name"], "/var/www/upload/".$fileName))
echo "Stored in: " . "/var/www/upload/".$fileName;
}
}
else
echo "Invalid file";
The problem is if(move_uploaded_file($_FILES["file"]["tmp_name"],"/var/www/upload/".$fileName))returns false all the time but it seems the file is stored in the tmpfolder on the server (for example: /tmp/php8rrKoW). When I check the tmpfolder the file is not there. (It's supposed to get deleted after the script finish executing.) I also don't see the /php8rrkoWfolder. I'm not sure if it's supposed to be there. I set the permission for both the tmpfolder and /var/www/upload/to 777using chmod, but I'm not sure if I should set the owner to apache. So I want to know why the file isn't copied over to /var/www/uploadand if there is a way to test this.
问题是一直if(move_uploaded_file($_FILES["file"]["tmp_name"],"/var/www/upload/".$fileName))返回 false 但似乎文件存储在tmp服务器上的文件夹中（例如：）/tmp/php8rrKoW。当我检查tmp文件夹时，文件不存在。（它应该在脚本执行完成后被删除。）我也没有看到该/php8rrkoW文件夹。我不确定它是否应该在那里。我设置的许可，允许该tmp文件夹，/var/www/upload/以777使用chmod，但我不知道我是否应该拥有者设置为apache。所以我想知道为什么文件没有被复制到，/var/www/upload以及是否有办法测试这个。
回答by Lawrence Cherone
Here is a basic image upload class I made for another question the other day, simple to use, perhaps your find it interesting.
这是我前几天为另一个问题制作的一个基本的图片上传类，使用简单，也许你觉得有趣。
<?php
error_reporting(E_ALL); //Will help you debug a [server/path/permission] issue
Class uploadHandler{
public $upload_path;
public $full_path;
public $name;
public $size;
public $ext;
public $output;
public $input;
public $prefix;
private $allowed;
function upload(){
if($_SERVER['REQUEST_METHOD'] == 'POST'){
if(isset($_FILES[$this->input]['error'])){
if($_FILES[$this->input]['error'] == 0){
$this->name = basename($_FILES[$this->input]['name']);
$file_p = explode('.', $this->name);
$this->ext = end($file_p);
$this->full_path = rtrim($this->upload_path,'/').'/'.preg_replace('/[^a-zA-Z0-9.-]/s', '_', $this->prefix.'_'.$file_p[0]).'.'.$this->ext;
$info = getimagesize($_FILES[$this->input]['tmp_name']);
$this->size = filesize($_FILES[$this->input]['tmp_name']);
if($info[0]>$this->allowed['dimensions']['width'] || $info[1] > $this->allowed['dimensions']['height']){
$this->output = 'File dimensions too large!';
}else{
if($info[0] > 0 && $info[1] > 0 && in_array($info['mime'],$this->allowed['types'])){
move_uploaded_file($_FILES[$this->input]['tmp_name'],$this->full_path);
$this->output = 'Upload success!';
}else{
$this->output = 'File not supported!';
}
}
}else{
if($_FILES[$this->input]['error']==1){$this->output = 'The uploaded file exceeds the upload_max_filesize directive!';}
if($_FILES[$this->input]['error']==2){$this->output = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in our HTML form!';}
if($_FILES[$this->input]['error']==3){$this->output = 'The uploaded file was only partially uploaded!';}
if($_FILES[$this->input]['error']==4){$this->output = 'No file was uploaded!';}
if($_FILES[$this->input]['error']==6){$this->output = 'Missing a temporary folder!';}
if($_FILES[$this->input]['error']==7){$this->output = 'Failed to write uploaded file to disk!';}
if($_FILES[$this->input]['error']==8){$this->output = 'A PHP extension stopped the file upload!';}
}
}
}
}
function setPath($var){
$this->upload_path = $var;
}
function setAllowed($var=array()){
$this->allowed = $var;
}
function setFilePrefix($var){
$this->prefix = preg_replace('/[^a-zA-Z0-9.-]/s', '_', $var);
}
function setInput($var){
$this->input = $var;
}
}
//Start class
$upload = new uploadHandler();
//Set path
$upload->setPath('./');
//Prefix the file name
$upload->setFilePrefix('user_uploads');
//Allowed types
$upload->setAllowed(array('dimensions'=>array('width'=>200,'height'=>200),
'types'=>array('image/png','image/jpg','image/gif')));
//form property name
$upload->setInput('myfile');
//Do upload
$upload->upload();
//notice
if(isset($upload->output)){
echo $upload->output;
}
?>
<form action="" method="POST" enctype="multipart/form-data">
<!--1 MB = 1048576 bytes-->
<input type="hidden" name="MAX_FILE_SIZE" value="1048000" />
<p>Upload your image:<input type="file" name="myfile"><input type="submit" value="Upload"></p>
</form>
回答by Jon Kloske
The destination directory you want to move the files into should be writable by the webserver user. Also don't forget that some webservers operate inside a changeroot, so parts of the destination path may not be needed. The PHP help doc also says you should check the HTLM form to ensure it's enctype='multipart/form-data'.
您要将文件移动到的目标目录应该是网络服务器用户可写的。也不要忘记一些网络服务器在 changeroot 内运行，因此可能不需要目标路径的一部分。PHP 帮助文档还说您应该检查 HTLM 表单以确保它是 enctype='multipart/form-data'。
And finally: where is $filename defined?
最后： $filename 在哪里定义？
回答by Bruce Tong
Your path must consist of '/home/usr-name'
您的路径必须包含“/home/usr-name”
Try adding '/home/your-username' to the beginning of '/var/www/upload' .
尝试将 '/home/your-username' 添加到 '/var/www/upload' 的开头。
To get an idea, add a info.php into your root directory, open it up in a browser and look under 'Loaded Configuration File'.
要获得一个想法，请将 info.php 添加到您的根目录中，在浏览器中打开它并在“加载的配置文件”下查看。
回答by mlishn
It seems that you should be using ./upload/ instead of /var/www/upload/ since you are already in the main directory of the accessible website.
似乎您应该使用 ./upload/ 而不是 /var/www/upload/ 因为您已经在可访问网站的主目录中。
You can also refer to http://www.tizag.com/phpT/fileupload.phpor the API : http://php.net/manual/en/function.move-uploaded-file.php
您也可以参考http://www.tizag.com/phpT/fileupload.php或 API：http: //php.net/manual/en/function.move-uploaded-file.php
Let me know if that works
让我知道这是否有效
