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Instructions for using class-level constants in php5.5_PHP Tutorial
Instructions for using class-level constants in php5.5_PHP Tutorial
I studied php5.5 yesterday and found that there is a new feature called class-level constants. Let me briefly share my study notes with you.
Not long ago, PHP released the first stable version of 5.5, which introduced a class-level constant named `CLASS`. This constant is valid for all classes and returns the full name of the class.
The code is as follows
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namespace vendorpackage; Why use it Why should we use such a constant? Of course it is not just to get the full name of the class like the example above. We can also achieve the same effect using __NAMESPACE__, and php5.3 can be used:
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