... 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 ... of, in PHP, 11 new operator, 16, 21 pass-by-reference rather than pass-by-value, 12–13 PEAR and object-oriented programming, 13 PHP 3 and, 11 PHP 4 and, 12 PHP 5 and, 13 PHP 5.3 and namespaces, ... documentation phprelease, list of elements, 340 phpuc command line tool, 438 amending the config.xml and build.xml files, 442 bug in the phpuc graph command, 442 project command, using, 441 phpUnderControl...