English 中文(简体)
在一个类中执行 __ 自动装入
原标题:implement __autoload in a Class
  • 时间:2012-05-25 06:01:51
  •  标签:
  • php
  • autoload

是否有一种方法我可以在类中定义 , 所以每当我访问一个未定义的类 PHP 时, 都会运行 类方法?

<?php 
class Test {
    public function __construct() {
        echo  Instantiating  , __CLASS__, "
";
    }

    public function __autoload($className) {
        echo "Loading $className
";
        require_once($className .  .php );
    }

    public function test() {
        $test = new AnotherClass();
    }
}

$bill = new Test();
$bill->test();

另一类. php:

<?php
class AnotherClass {
    public function __construct() {
        echo  Instantiating  , __CLASS__, "
";
    }
}

产出:

Instantiating Test
Loading AnotherClass
Instantiating AnotherClass
最佳回答

否, 函数必须是全球性的 。

然而, SPL 能够将任何 可点名 登记为自动装载功能: spol_autoload_register () <() 。使用类方法没有多大意义,尽管 - 您可能只是创建实例, 注册该方法, 并且不再使用该方法 。

问题回答

这工作!

class ClassAutoloader {
    public function __construct() {
        spl_autoload_register(array($this,  loader ));
    }
    private function loader($className) {
        echo  Trying to load  , $className,   via  , __METHOD__, "()
";
        include $className .  .php ;
    }
}




相关问题
Brute-force/DoS prevention in PHP [closed]

I am trying to write a script to prevent brute-force login attempts in a website I m building. The logic goes something like this: User sends login information. Check if username and password is ...

please can anyone check this while loop and if condition

<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...

定值美元

如何确认来自正确来源的数字。

Generating a drop down list of timezones with PHP

Most sites need some way to show the dates on the site in the users preferred timezone. Below are two lists that I found and then one method using the built in PHP DateTime class in PHP 5. I need ...

Text as watermarking in PHP

I want to create text as a watermark for an image. the water mark should have the following properties front: Impact color: white opacity: 31% Font style: regular, bold Bevel and Emboss size: 30 ...

How does php cast boolean variables?

How does php cast boolean variables? I was trying to save a boolean value to an array: $result["Users"]["is_login"] = true; but when I use debug the is_login value is blank. and when I do ...

热门标签