Getting filename (or deleting file) using file handle
PhpFilePhp Problem Overview
Is there a possibility to obtain filename from file handle? Or how can I delete file having only a handle?
Php Solutions
Solution 1 - Php
There is stream_get_meta_data. It works for a stream that you get from [tmpfile()](https://www.php.net/manual/en/function.tmpfile.php "Link to understand tmpfile() method"). If you call it on a regular file pointer then you might only get the basename.
$meta_data = stream_get_meta_data($stream_or_file_pointer);
$filename = $meta_data["uri"];
echo $filename;
Example for tmpfile():
"/private/var/folders/v3/n54x13jx5v7610fw9dm0wcxm0000gn/T/phpCJvevP"
Example for fopen("somefile", "r"):
"test"
Solution 2 - Php
Nyes. Afaik there is no function in PHP to that directly. But on Linux, you can do
$fp = fopen('somefile', 'r');
$stat = fstat($fp);
$inode = $stat['ino'];
system("find -inum $inode", $result);
echo $result;
This is untested so it might need tweaking.
EDIT Apparently, there is a simpler solution.
Solution 3 - Php
To achieve this, you will need to create a wrapper that stores the file name. A file handle has no context of the filename it was created from.
Solution 4 - Php
A clean method to use temporary file:
<?
$tmp=array_search('uri', @array_flip(stream_get_meta_data($GLOBALS[mt_rand()]=tmpfile())));
file_put_contents($tmp, 'hello');
echo file_get_contents($tmp);
?>
without need to fclose the tmp file, it will be deleted while the php ends.