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:

<?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

复制代码 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]

相关链接

http://ch2.php.net/manual/zh/function.debug-print-backtrace.php

http://ch2.php.net/manual/zh/function.debug-backtrace.php