WeberDev.com -> PHP Manual -> Generates a backtrace

Description

array debug_backtrace ([ bool $provide_object ] )

debug_backtrace() generates a PHP backtrace.

Return Values

Returns an associative array. The possible returned elements are as follows:

Possible returned elements from **debug_backtrace()**
Name	Type	Description
function	string	The current function name. See also __FUNCTION__.
line	integer	The current line number. See also __LINE__.
file	string	The current file name. See also __FILE__.
class	string	The current class name. See also __CLASS__
object	object	The current object.
type	string	The current call type. If a method call, "->" is returned. If a static method call, "::" is returned. If a function call, nothing is returned.
args	array	If inside a function, this lists the functions arguments. If inside an included file, this lists the included file name(s).

ChangeLog

Version	Description
5.2.5	Added the optional parameter `provide_object` .
5.1.1	Added the current object as a possible return element.

Examples

Example #1 debug_backtrace() example

 <?php
// filename: /tmp/a.php

function a_test($str)
{
    echo "\nHi: $str";
    var_dump(debug_backtrace());
}

a_test('friend');
?>

<?php
// filename: /tmp/b.php
include_once '/tmp/a.php';
?>

Results similar to the following when executing /tmp/b.php:

  Hi: friend array(2) { [0]=> array(4) {     ["file"] => string(10) "/tmp/a.php"     ["line"] => int(10)     ["function"] => string(6) "a_test"     ["args"]=>     array(1) {       [0] => &string(6) "friend"     } } [1]=> array(4) {     ["file"] => string(10) "/tmp/b.php"     ["line"] => int(2)     ["args"] =>     array(1) {       [0] => string(10) "/tmp/a.php"     }     ["function"] => string(12) "include_once"   } }

debug_backtrace

Description

Return Values

ChangeLog

Examples

See Also