debug_print_backtrace

Description

debug_print_backtrace() prints a PHP backtrace. It prints the function calls, include()d/require()d files and eval()ed stuff.

Parameters

options

This parameter is a bitmask for the following options:

DEBUG_BACKTRACE_IGNORE_ARGS	Whether or not to omit the "args" index, and thus all the function/method arguments, to save memory.
DEBUG_BACKTRACE_PROVIDE_OBJECT	Accepted for compatibility with debug_backtrace(), but has no effect: the generated backtrace is rendered as a string and the "object" entry is never printed.

limit

This parameter can be used to limit the number of stack frames printed. By default (limit=0) it prints all stack frames.

Return Values

Void

Examples

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';
?>

The above example will output something similar to:

#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]

See Also

• debug_backtrace()