PHP readfile error

Question

I am getting an error. I am trying to read an attachment. It does work perfectly on most files but on few I get this error. The files have the same format and the location it is trying to read from is correct. I have tested it on windows explorer. This is way i am reading it:

        header('Content-Description: File Transfer'); 
        header('Content-Type: application/octet-stream'); 
        header('Content-Disposition: attachment; filename="' . $filename .'"'); 
        header('Content-Transfer-Encoding: binary'); 
        header('Expires: 0'); 
        header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); 
        header('Pragma: public'); 
        header('Content-Length: ' . filesize($attachment_location)); 
        ob_clean(); 
        flush(); 
        readfile($attachment_location);     
        exit();

This is the error I get

Warning: readfile(C:\Users\Public\asdgasd\4sf3\Suppliers\saf342\Files\Revit\2016\Seinätikas.rfa): failed to open stream: No such file or directory in C:\xampp\htdocs\web\downloadattachment.php on line 58

It clearly says that there is no such file in your filesystem. Check it out before calling readfile() if such file exists. — Alex
– Alex, Commented Jun 1, 2016 at 10:54
No, I meant you to do something like this: var_dump(file_exists($attachment_location)); This will tell you whether php sees this file or not. — Alex
– Alex, Commented Jun 1, 2016 at 10:57

Mm-Art-In · Accepted Answer · 2016-06-01 11:08:33Z

1

as Johndodo kind of references, you need to ensure that PHP is operating with the correct internal character set and encoding, so that it recognises the way the file is stored in your (windows) directory structure. See what character set your windows system is using and then use that same character set for PHP internal encoding.

Edit:

Logic process would be to:

Open file reference from email and convert the filename $var into the correct encoding.
Do the file_exists check
Proceed to pass the $var to the readfile function to open.

answered Jun 1, 2016 at 11:08

Mm-Art-In

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damianopetrungaro · Accepted Answer · 2016-06-01 11:11:55Z

1

You should put a checker for see if the file exists in your filesystem.

if (!file_exists($filePath)) {

    // Throw an exception or do something for alert the wrong path.
    throw new Exception('File with this path is not available.');

} else {

    // Do your amazing stuff here

}

answered Jun 1, 2016 at 11:11

damianopetrungaro

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Mm-Art-In Over a year ago

If you read the comments to the question you will see that OP has already done this.

Florian · Accepted Answer · 2016-06-01 11:00:06Z

0

could you please provide the content of $filename and $attachment_location.

Could you please extend your code with this:

if (file_exists($file)) {
 Your code goes here
 ....
 exit();
}

Further things to check: Is the file readable by the webserver user (if you're using a websever). Does the problem have an effect on files in which there are special chars in the filename ?

answered Jun 1, 2016 at 11:00

Florian

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