测试代码 代码如下: <?php class a{ function say($msg) { echo "msg:".$msg; echo "<pre>";debug_print_backtrace(); } }
class b { function say($msg) { $a = new a(); $a->say($msg); } }
class c { function __construct($msg) { $b = new b(); $b->say($msg); } }
$c = new c("test");
输出结果 代码如下: msg:test #0 a->say(test) called at [/var/www/test/test0723.php:12] #1 b->say(test) called at [/var/www/test/test0723.php:19] #2 c->__construct(test) called at [/var/www/test/test0723.php:23]
