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This article mainly introduces "how to define constants in C++ development PHP7". In daily operation, I believe many people have doubts about how to define constants in C++ development PHP7. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "how to define constants in C++ development PHP7". Next, please follow the editor to study!

Let's define the following constants: (don't worry too much about the actual meaning, , our extension is imaginary.)

HELLO_ZAPI_VERSION (int)

HELLO_ZAPI_NAME (string)

HELLO_DEBUG_MODE (bool)

HELLO_ZAPI_PI (double)

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