how to determine the correct extension file is uploaded???

[vishal]

i am allowing user to add file upload to server and the suer can put
only those files which display some image i.e. jpg or gif or other
photo file. so how can i check that the user has selected correct type
of file to upload

thxs for help in advance

[rovisoft]

This is a small function that will return the file extension, all you
have to do is to compare it with what you allow:

function get_ext($filename)
{
$file=explode(".",$filename);
return $file;
}

Or you can check the file type, if it's image/gif, image/jpeg or
image/png! You can do that with this function, where $f is the full
path to the file
if (!function_exists('mime_content_type')) {
function mime_content_type($f) {
$f = escapeshellarg($f);
return trim( `file -bi $f` );
}
}
Ovidiu:)
DevPlug.com Forum

[Chung Leong]

http://www.php.net/getimagesize/