我是一个非常新的面向对象的PHP，我正在通过一些基本的例子学习。我有index.php文件中，我已经创建了类和使用的getter和setter。在class_lib.php文件中，我已经创建了类的对象，并尝试回滚该值。但是我没有得到任何值返回。
inde.php
<?php
class person {
var $name;
function __construct($persons_name)
{
$this->name = $persons_name;
}
function set_name($new_name)
{
$this->name = $new_name;
}
function get_name()
{
return $this->name;
}
}
class employee extends person
{
function __construct($employee_name)
{
$this->set_name($employee_name);
}
}
?>
class_lib.php
<?php
include "index.php";
$stefan = new person("Stefan Mischook");
echo "Stefan's full name: " . $stefan->get_name();
echo '<br>';
$james = new employee("Johnny Fingers");
echo "new employee---> " . $james->get_name();
?>
将class_lib.php代码更改为index.php代码，将index.php代码更改为class_lib.php
index . php
<?php
include "class_lib.php";
$stefan = new person("Stefan Mischook");
echo "Stefan's full name: " . $stefan->get_name();
echo '<br>';
$james = new employee("Johnny Fingers");
echo "new employee---> " . $james->get_name();
?>
class_lib.php
<?php
class person {
var $name;
function __construct($persons_name)
{
$this->name = $persons_name;
}
function set_name($new_name)
{
$this->name = $new_name;
}
function get_name()
{
return $this->name;
}
}
class employee extends person
{
function __construct($employee_name)
{
$this->set_name($employee_name);
}
}
?>
下面是在PHP 5.4.4上执行的代码:http://ideone.com/KvrQVF
输出:Stefan's full name: Stefan Mischook
new employee---> Johnny Fingers
似乎工作正常