1--TEST-- 2Test constants with default values based on other constants. 3--FILE-- 4<?php 5 class C 6 { 7 const CONST_2 = self::CONST_1; 8 const CONST_1 = self::BASE_CONST; 9 const BASE_CONST = 'hello'; 10 } 11 var_dump(C::CONST_1, C::CONST_2); 12?> 13--EXPECT-- 14string(5) "hello" 15string(5) "hello" 16