Php convert source code to byte/native code

i m looking for something that would convert my source code in php to byte code so that i can eliminate the overhead of compiling the source code and converting it to byte code everytime i make a request to a page.

so suppose i have a page named /test.php and its source code looks something like this

echo " this is test.php";


now i want that the file test.php to be converted to byte code and store it permanently instead of converting to byte code everytime.

Help ???

Whole list:

Have you looked at APC?