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# constant

(PHP 4 >= 4.0.4, PHP 5)

constant -- Returns the value of a constant

## Description

mixed constant ( string name)

constant() will return the value of the constant indicated by `name`.

constant() is useful if you need to retrieve the value of a constant, but do not know its name. i.e. It is stored in a variable or returned by a function.

예 1. constant() example

`<?php define("MAXSIZE", 100); echo MAXSIZE; echo constant("MAXSIZE"); // same thing as the previous line ?>`

See also define(), defined() and the section on Constants.

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