PHP - Autoload. Load CLasses if not found. Works with regular or static classes.

gistfile1.txt

spl_autoload_register(function ($class_name) {              
    include './class/'.$class_name . '.php';
});

================== or ========================

function __autoload($className) {
    $className = str_replace("..","", $className);
    require_once ("./class/$className.php");
}

//Note: Class must have same name of the file.