How can I execute php script as root user?
I tried:
sudo ./script.php
and in my script I've got at 1 line: #!/usr/bin/php
If I've understood correctly, you shouldn't need #!/usr/bin/php in your PHP script.
Presuming you've got php installed with the command available, try the below from command line:
sudo php path/to/script.php
...where script.php contains only PHP code.