debug_print_backtrace() 函数输出 backtrace。
debug_print_backtrace()
例子
输出：
#0 three(Cleveland, Brown) called at [C:webfoldertest.php:8] #1 two(Glenn, Quagmire) called at [C:webfoldertest.php:4] #2 one(Peter, Griffin) called at [C:webfoldertest.php:15]
例子
