PHP note: Detailed description based on object-oriented design _ PHP Tutorial

PHP note: Detailed description based on object-oriented design. Public indicates Global, which can be accessed by external sub-classes inside the class. copy the code as follows :? PhpclassTest {public $ nameJanking, $ sexmale, $ age23; function _ construct () {echo public indicates global, and can be accessed by external subclass inside the class;

The code is as follows:

Class Test {
Public $ name = 'janking ',
$ Sex = 'male ',
$ Age = 23;

Function _ construct (){
Echo $ this-> age .'
'. $ This-> name .'
'. $ This-> sex .'
';
}

Function func (){
Echo $ this-> age .'
'. $ This-> name .'
'. $ This-> sex .'
';
}
}


$ P = new Test ();
Echo'

';
$ P-> age = 100;
$ P-> name = "Rainy ";
$ P-> sex = "female ";
$ P-> func ();
?>
Public

Private indicates private, which can only be used inside the class;

The code is as follows:

Class Test {
Private $ name = 'janking ',
$ Sex = 'male ',
$ Age = 23;

Function _ construct (){
$ This-> funcOne ();
}

Function func (){
Echo $ this-> age .'
'. $ This-> name .'
'. $ This-> sex .'
';
}

Private function funcOne (){
Echo $ this-> age .'
'. $ This-> name .'
'. $ This-> sex .'
';
}
}


$ P = new Test ();
Echo'

';
$ P-> func ();
$ P-> age = 100; // Cannot access private property Test: $ age
$ P-> name = "Rainy"; // Cannot access private property Test: $ name
$ P-> sex = "female"; // Cannot access private property Test: $ female
$ P-> funcOne (); // Call to private method Test: funcOne () from context''
?>
Private

Protected indicates that it is protected and can be accessed only in the current class or subclass or parent class; magic methods related to Encapsulation:

_ Set (): The method automatically called when the property value of a private member is directly set.

_ Get (): The method automatically called when the private member attribute value is directly obtained.

_ Isset (); this method is automatically called when the isset directly checks whether the private attributes in the object are stored.

_ Unset (); is the method automatically called When unset directly deletes the private attribute of an object.

The http://www.bkjia.com/PHPjc/327164.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/327164.htmlTechArticlepublic represents the global, and the class's internal external subclass can be accessed; the code is as follows :? Php class Test {public $ name = 'janking', $ sex = 'male', $ age = 23; function _ construct () {echo...