PHP 忒聊 綴豖 ヶ輛 defined (PHP 3, PHP 4) Description Returns TRUE if the named constant given by name has been defined, FALSE otherwise. 瞰赽 1. Checking Constants ?php if (defined("CONSTANT")){ // Note that it should be quoted echo CONSTANT; //}? See also define(), constant(), get_defined_constants() and the section on Constants. 綴豖 れ萸 ヶ輛 define 奻珨撰 die