PHP 5.3.2 and older 5.3 version has bug with autoloading classes with spl_autoload. You can find information about this bug here - http://bugs.php.net/51991

The php binary which is currently bundled is "5.3.3RC3" (aka PFA 0.11). Does it have this bug too? (You don't need to reinstall PFA-APK to update to 0.11 , just use its "uninstall"/"install" button.)

it doesn't work either. It's strange, because i use PHP 5.3.0 on Windows and everything is working fine.

This might be related to a known issue which is the lack of glob stream wrapper in our android build. PHP 5.3.3-final has been released. I'll study this when I work in that build.