编辑代码

<?php
    class Person {
        var $name;
        var $gender;
        var $age;

        function say() {
            echo "我的名字叫：" .$this->name. " 性别：" .$this->gender. " 我的年龄是：" .$this->age. "<br>";
            // 变量左右两边的点(.)用来连接字符串
        }
    }

$p1 = new Person();
$p2 = new Person();
$p3 = new Person();

$p1 -> name = "张三"; $p1 -> gender = "男"; $p1 -> age = 20;
$p2 -> name = "李四"; $p2 -> gender = "女"; $p2 -> age = 19;
$p3 -> name = "王五"; $p3 -> gender = "男"; $p3 -> age = 18;

$p1 -> say();
$p2 -> say();
$p3 -> say();
?>