define

(PHP 4, PHP 5)

define — Defines a named constant

Описание

bool define ( string $name , mixed $value [, bool $case_insensitive ] )

Defines a named constant at runtime.

Список параметров

name: The name of the constant.
value: The value of the constant; only scalar and null values are allowed. Scalar values are integer, float, string or boolean values.
case_insensitive: If set to TRUE, the constant will be defined case-insensitive. The default behaviour is case-sensitive; i.e. CONSTANT and Constant represent different values.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Примеры

Пример #1 Defining Constants


<?php
define("CONSTANT", "Hello world.");
echo CONSTANT; // outputs "Hello world."
echo Constant; // outputs "Constant" and issues a notice.

define("GREETING", "Hello you.", true);
echo GREETING; // outputs "Hello you."
echo Greeting; // outputs "Hello you."

?>

Смотрите также

defined()
constant()
The section on Constants

constant

defined

Misc. Функции