Fatal error: Call to undefined function sql_autoload_register() in D:\phpStudy\WWW\imooc\index.php on line 17

源码：

<?php
define('IMOOC',realpath(' /'));
define('CORE',IMOOC.'/core');
define('APP',IMOOC.'/app');

define('DEBUG',true);

if(DEBUG){
   ini_set('display_error','on');
}else{
   ini_set('display_error','off');
}
include CORE.'/common/function.php';

include CORE.'/imooc.php';

sql_autoload_register('\core\imooc::load');

\CORE\imooc::run();






?>