在php中找不到类

Question

I have a PHP project structured as:

--root
 |--dr1
 |   |---dr2
 |        |--testclass.php
 |--start.php
 |--bootstrap.php

The testclass.php contains:

 namespace dr1\dr2;

 class testclass { 
     ... 
 }

The bootstrap.php contains:

define('DIR_SEP', DIRECTORY_SEPARATOR);
define('ROOT', dirname(__FILE__) . DIR_SEP);

function __autoload($class)
{
    $path = ROOT . str_replace('\\', DIR_SEP, $class);
    $file = $path . '.php';
    if( is_file($file) ) require_once($file);
}

spl_autoload_extensions('.php');
spl_autoload_register('__autoload');

and The start.php contains:

$class = 'dr1\dr2\testclass.php';
$obj   = new $class();

When I run the start.php, I got the message dr1\dr2\testclass.php is not found on start.php on line 5. I could not figure out why. would anybody help. thanks a lot.

Answer 1

The autoloader looks correct, so the problem is the Classname testclass.php. In you source-file it's just testclass without the .php - so if you adjust your $class-variable like that it should work:

$class = 'dr1\dr2\testclass';
$obj   = new $class();