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使用 define() 函数定义常量define("CONSTANT_NAME", "constant value");使用 const 关键字定义类常量class MyClass {const CONSTANT_NAME = "constant value";}使用 defin
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define("CONSTANT_NAME", "constant value");
class MyClass {const CONSTANT_NAME = "constant value";}
define("FRUITS", ["apple","banana","orange"]);
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