PHP多层require问题,请php高手指教!

Question

就是直接
require_once( "classes/a.class.php" );

Answer 1

/classes/a.class.php
<?php
$basedir = dirname(__FILE__);
require_once($basedir."b.class.php");
?>/classes/b.class.php
<?php
$basedir = dirname(__FILE__);
?>/c.php
<?php
$basedir = dirname(__FILE__);
require_once($basedir."classes/a.class.php");
?>

Answer 2

大意是这样
改正一下$basedir = dirname(__FILE__)."/";详细的说明参见~~
http://www.chinaunix.net/jh/27/221927.html