php 调试利器debug_print_backtrace()

";debug_print_backtrace(); <br>} <br>} <br><br>class b { <br>function say($msg) { <br>$a = new a(); <br>$a->say($msg); <br>} <br>} <br><br>class c { <br>function __construct($msg) { <br>$b = new b(); <br>$b->say($msg); <br>} <br>} <br><br>$c = new c("test"); <br> <br>输出结果 <br><span style="CURSOR: pointer" onclick="doCopy('code6618')"><u>复制代码</u></span> 代码如下: <br>msg:test <br>#0 a->say(test) called at [/var/www/test/test0723.php:12] <br>#1 b->say(test) called at [/var/www/test/test0723.php:19] <br>#2 c->__construct(test) called at [/var/www/test/test0723.php:23] <br> <br>相关链接 <br><br> <br>