Debug print traceback

页面分类: PHP

天下维客，你可以修改的网络知识库

• 版本：PHP 5以上
• 作用：打印输出某函数被调用的反向跟踪信息，包括：调用者、调用参数、include/require函数等信息。
• 用法：void debug_print_backtrace ( void )
• 参数：无
• 返回值：无

范例

文件include.php：

<?php
function a($str) {
    b($str.'.a');
}
 
function b($str) {
    c($str.'.b');
}
 
function c($str){
    debug_print_backtrace();
}
 
a('base');
a('x');
?>

文件test.php：

<?php
include 'include.php';
?>

当运行主程序test.php时，上例的输出类似于：（本结果由WAMP5 1.7.3集成环境生成）

#0  c(base.a.b) called at [X:\include.php:7]
#1  b(base.a) called at [X:\include.php:3]
#2  a(base) called at [X:\include.php:14]
#3  include(X:\include.php) called at [X:\test.php:2]
#0  c(x.a.b) called at [X:\include.php:7]
#1  b(x.a) called at [X:\include.php:3]
#2  a(x) called at [X:\include.php:15]
#3  include(X:\include.php) called at [X:\test.php:2]

参考资料

• 参见： debug_backtrace()