php 调试利器debug_print_backtrace()_PHP

如果我们想知道某个方法被谁调用了? debug_print_backtrace可以解决
debug_print_backtrace() 可以打印出一个页面的调用过程 , 从哪儿来到哪儿去一目了然.
不过这是一个PHP5的专有函数,好在pear中已经有了实现,
http://pear.php.net/package/PHP_Compat

测试代码
复制代码 代码如下:
class a{
function say($msg) {
echo "msg:".$msg;
echo "

";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><u>复制代码</u> 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>http://ch2.php.net/manual/zh/function.debug-print-backtrace.php <br>http://ch2.php.net/manual/zh/function.debug-backtrace.php