... 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 ... INDEX 507 See also PEAR PHP_ CodeBrowser installing and using, 433 phpcb command line tool, 434 PHP_ CodeSniffer, 433 php. ini, 79, 337 phpdoc command, 349 PHPDocumentor, 7, 321, 431, 459 ... 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, 14 PHP 6 and, 14 properties, setting dynamically, 18 taking a design-oriented...