(PHP 4 >= 4.0.4)

constant -- Returns the value of a constant


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 it's name. i.e. It is stored in a variable or returned by a function.

Example 1. constant() example


define ("MAXSIZE", 100);

echo constant("MAXSIZE"); // same thing as the previous line


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