
定义和用法
debug_print_backtrace() 函数打印 backtrace。
该函数显示由 debug_print_backtrace() 函数代码生成的数据。
语法
debug_print_backtrace()
实例
<?php function one($str1, $str2) { two("Glenn", "Quagmire"); } function two($str1, $str2) { three("Cleveland", "Brown"); } function three($str1, $str2) { debug_print_backtrace(); } one("Peter", "Griffin"); ?>
上面代码的输出如下所示:
#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]