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constant(PHP 4 >= 4.0.4, PHP 5) constant — Returns the value of a constant DescriptionReturn 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. This function works also with class constants. Parameters
Return ValuesReturns the value of the constant, or NULL if the constant is not defined. Examples
Example #1 constant() example
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