PHP Object Tutorials

"Getting Started with PHP object-oriented (OOP) programming" 6. How to use members in an object qianyunlai.com posted: 2012-05-19 15:02 Category: PHP basic browse (280)

There are two types of members in a PHP object that are member properties, and one is a member method. We can declare the object by the $p 1=new person (); How to use the members of the object? To access members of an object, you use a special operator, "-" to accomplish access to the object members:

Object, Properties $p 1->name; $p 2->age; $p 3->sex;

Object, Method $p 1->say (); $p 2->run (); As in the following example:

<?php class Person {      // 下面是人的成员属性      var $name ;      // 人的名子      var $sex ;       // 人的性别      var $age ;       // 人的年龄      // 下面是人的成员方法      function say() { // 这个人可以说话的方法          echo "这个人在说话" ;      }      function run() { // 这个人可以走路的方法          echo "这个人在走路" ;      } } $p1 = new Person(); //创建实例对象$p1 $p2 = new Person(); //创建实例对象$p2 $p3 = new Person(); //创建实例对象$p3 // 下面三行是给$p1对象属性赋值 $p1 ->name = "张三" ; $p1 ->sex = "男" ; $p1 ->age = 20; // 下面三行是访问$p1对象的属性 echo "p1对象的名子是：" . $p1 ->name; echo "p1对象的性别是：" . $p1 ->sex; echo "p1对象的年龄是：" . $p1 ->age; // 下面两行访问$p1对象中的方法 $p1 ->say(); $p1 ->run(); // 下面三行是给$p2对象属性赋值 $p2 ->name = "李四" ; $p2 ->sex = "女" ; $p2 ->age = 30; // 下面三行是访问$p2对象的属性 echo "p2对象的名子是：" . $p2 ->name; echo "p2对象的性别是：" . $p2 ->sex; echo "p2对象的年龄是：" . $p2 ->age; // 下面两行访问$p2对象中的方法 $p2 ->say(); $p2 ->run(); // 下面三行是给$p3对象属性赋值 $p3 ->name= "王五" ; $p3 ->sex= "男" ; $p3 ->age=40; // 下面三行是访问$p3对象的属性 echo "p3对象的名子是：" . $p3 ->name; echo "p3对象的性别是：" . $p3 ->sex; echo "p3对象的年龄是：" . $p3 ->age; // 下面两行访问$p3对象中的方法 $p3 ->say(); $p3 ->run(); ?>

As you can see from the example above, only the members of the object will be accessed using the object---Properties, Object-by-method, and there is no second way to access the members of the object.

PHP Object Tutorials