PHP面向对象----- 类的自动加载

1、类的自动加载

spl_autoload_register函数

test.php

<?php
spl_autoload_register('autoload');

// require_once "Test1.php";
// require_once "Test2.php";

function autoload($class)
{
	require __DIR__.'/'.$class.".php";
}

Test1::index();
Test2::index();

　　Test1.php

<?php

class Test1
{
    public static function index()
    {
        echo "Hello world,I am test1<br/>";
    }
}

Test2.php

<?php

class Test2
{
    static function index()
    {
        echo "Hello world,I am test2<br/>";
    }
}