php - Uploading a file to a different directory on server -

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i using php allow users upload photos on web app.

i using php function:

move_uploaded_file();

and define upload path:

define('uploadpath', 'images/');

to place photo in images/ directory

now want give users ability same thing, sub domain of website.

do do:

define('uploadpath', 'http:/mobile.website.com/images/');

if so, how prevent others uploading malicious files server, server?

first of second argument of move_uploaded_file() should directory, not url,

i mean correct : 

define('uploadpath', 'mobile/images/'); move_uploaded_file($tmp,uploadpath.$name);

but not : 

define('uploadpath', 'http:/mobile.website.com/images/'); move_uploaded_file($tmp,uploadpath.$name);

second of all, preventing others uploading malicious files server, better check extension of file.


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