Stefan, Try: ... http://www.goodphptutorials.com/out/Advanced_PHP_Working_with_Interfaces --- http://www.computer-books.us/php_2.php (for PHP 5 Power Programming by Gutmans et al) HPH John > -------Original Message------- > From: Stefan Schwarzer <st.schwarzer at geois.de> > Subject: [thelist] PHP Object-orientated programming - book recommendation > Sent: 11 Dec '08 06:07 > Hi there, > Can anyone recommend me some literature which expends this subject not > only a little bit but much more? > Stefan Schwarzer