PHP debug_print_backtrace() example

PHP has some pretty nifty built in debugging tools as for instance debug_print_backtrace() wich willl show the callstack starting where you place it..

More can be found at http://php.net/manual/en/ref.errorfunc.php

The above example will output something similar to:

#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]

<?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';
?>