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Most people do not understand the knowledge points of this article "how to use the member method in php", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to use the member method in php" article.

In PHP, member methods, also known as member functions, are used to access the data of the object, defined inside the class, and the syntax is "function method name (parameter..) {[method body] [return return value]}".

This article operating environment: Windows10 system, PHP7.1 version, Dell G3 computer.

The meaning of member method in php

Member method (the member function − is defined inside the class and can be used to access the data of the object)

Simple format:

[modifier] class class name {/ / use the class keyword plus a space followed by the class name [member attribute] / also known as member variable [member method] / also known as member function}

Full format:

[modifier] class class name [extends parent class] [implements interface 1 [, interface 2...]] {[member attribute] / also known as member variable [member method] / also known as member function}

Member attribute

Format:

Modifier $variable name [= default]; / / such as: public $name= "zhangsan"

Note: member properties cannot be expressions, variables, methods, or function calls with operators.

Public $var3 = 1x2; / / incorrect format public $var4 = self::myStaticMethod (); / / incorrect format public $var5 = $myVar; / / incorrect format

Define the method correctly:

Public $var6 = 100; / / normal values (4 scalars: integer, floating point, Boolean, string) public $var6 = myConstant; / / constant public $var7 = self::classConstant; / / static attribute public $var8 = array (true, false); / / array

Common property modifiers: public, protected, private, static, var (obsolete)

Member method

Member method format:

[modifier] function method name (parameter..) {[method body] [return return value]}

Modifiers: public, protected, private, static, abstract, final

Examples are as follows:

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