[php] 调试利器
如果我们想知道某个方法被谁调用了?debug_print_backtrace可以解决!~测试代码
1 <?php
2 class a{
3 function say($msg) {
4 echo "msg:".$msg;
5 echo "<pre>";debug_print_backtrace();
6 }
7 }
8
9 class b {
10 function say($msg) {
11 $a = new a();
12 $a->say($msg);
13 }
14 }
15
16 class c {
17 function __construct($msg) {
18 $b = new b();
19 $b->say($msg);
20 }
21 }
22
23 $c = new c("test");
输出结果
msg:test
#0a->say(test) called at
#1b->say(test) called at
#2c->__construct(test) called at
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
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