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This article mainly introduces how to use the const constant in the php class, which is very detailed and has a certain reference value. Interested friends must read it!

Php class const constant

Class constant is const constant

Class Student {public const ADD = "address unknown"; / / access modifier} echo Student::ADD is supported later.

The difference between define constant and const constant:

Const constants can be class members, while define constants cannot be class members.

The difference between constant and static properties:

Similarities: all allocate space when the class is loaded

The difference: the value of a constant cannot be changed, and the value of a static property can be changed.

These are all the contents of the article "how to use const constants in the php class". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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