... 407 PHP 3 and objects, 11 PHP 4 and objects, 12 PHP 4 and var keyword, 17, 35 PHP 5 and objects, 13 PHP 5, release features, 453 PHP 5. 3 and namespaces, 14, 71 PHP 6 and objects, 14 PHP ... isn’t found, 4 15 XML declaration, including, 409 PHP Atkinson, Leon, 5 Fuecks, Harry, 5 Gutmans, Andi, 5, 11 hinted return types, 156 Lerdorf, Rasmus, 5, 11 namespaces and, 455 origins of, ... code listing, 259 advantages and disadvantages of, 261 controller element, 258 error .php, 258 exit(), 258 forward(), 259 include(), 258 overview of, 257 process(), 259 venues .php, 261 view...