debug_print_backtrace
(PHP 5)
debug_print_backtrace — Prints a backtrace
说明
void debug_print_backtrace
( void
)
debug_print_backtrace() prints a PHP backtrace. It prints the function calls, included/required files and eval()ed stuff.
参数
This function has no parameters.
返回值
无返回值。
范例
Example#1 debug_print_backtrace() example
<?php
// include.php file
function a() {
b();
}
function b() {
c();
}
function c(){
debug_print_backtrace();
}
a();
?>
<?php
// test.php file
// this is the file you should run
include 'include.php';
?>
上例的输出类似于：
#0 eval() called at [/tmp/include.php:5] #1 a() called at [/tmp/include.php:17] #2 include(/tmp/include.php) called at [/tmp/test.php:3] #0 c() called at [/tmp/include.php:10] #1 b() called at [/tmp/include.php:6] #2 a() called at [/tmp/include.php:17] #3 include(/tmp/include.php) called at [/tmp/test.php:3]
CDN