Doug BiererSenior Technical Trainer, Zend by Perforce Doug Bierer has been hooked on computers since his first program, written on a DEC PDP-8 in 1971. In his wide-ranging career, Doug has been a professional contract programmer since 1978, having built applications in BASIC, PL/I, assembler, FORTH, C, C++, dBase/FoxBase/Clipper, Pascal, Prolog, Perl, Java, Python, and PHP. He deployed his first website in 1993 while living in San Francisco. Doug has been doing technical PHP training since 2009 and has written a number of technical books including PHP 8 Programming Tips, Tricks and Best Practices and the PHP 7 Programming Cookbook (Packt Publishing Ltd). He is fluent in three languages, has traveled extensively, and now resides in Thailand.