I'm not intrested in compiling for performance but in being able to "compile" a php script in order to carry it on a usb stick or portable hard drive.
I think that there may be two way:
1) Portable Apache 2) Portable command line php
I undersand that some package such as xampp and so on exists, as well as using the php bin files but I was wondering if something more user friendly exists, I mean something that I can just double click, open a browser and use.
Thank you very much.
PHP is only interpreted. XAMPP merely sets up a mock environment with an apache server, a database, and the PHP engine. Unfortunately, XAMPP is about as fast and portable you're going to get in terms of being able to fire up a PHP app.
If you figure out a way to do it the way you're looking to - message me - I'll pay for it...
searching THE WEB gives me this
PCC: http://code.roadsend.com/pcc/
and this
PHC: http://baheyeldin.com/technology/drupal/parrot-virtual-machine-pint-plumhead-phc-compiler-and-drupal.html
Two native PHP Compiler i found.