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This article mainly introduces the relevant knowledge of "how to use the static method in php". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to use the static method in php" can help you solve the problem.

Description

1. Represents static, which is used before declaring properties and member methods.

It can be called directly without instantiation, and static properties and classes can be bound.

2. Used as a pronoun.

Can be used in the expression of a member method to refer to the class being called.

3. The member method returns the value type, which is used in the member method declaration to restrict that the return value must be the object of the calling class.

Example

Class Product {public static function getNew (): static {$new = new static; return $new;}} class SubProduct extends Product {} $p1 = Product::getNew (); $p2 = SubProduct::getNew (); var_dump ($p1); / / object (Product) # 24var_dump ($p2) / / object (SubProduct) # 27 this is the end of the introduction to "how to use the static method in php". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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