Question

I’ve run into a typical problem here. Till now i was doing

strstr($filename,".");

$filename is the file i got from $_FILE i.e uploaded file.It was running fine until i hit a filename of the type i mentioned.
Even doing

pathinfo($filename);

gives me

.gz 

I need to see whether it is EXACTLY

.tar.gz

Answer 1

The most simple way would be to check for the last 7 characters of the filename – this ensures that every file ends with .tar.gz:

if (substr($filename, -7) == '.tar.gz') {
    // continue
}