Compzone.Org :: Podręcznik PHP :: debug_backtrace

Podręcznik PHP
Poprzedni		Następny

debug_backtrace

(PHP 4 >= 4.3.0, PHP 5)

debug_backtrace -- Generates a backtrace

Opis

array debug_backtrace ( void )

debug_backtrace() generates a PHP backtrace.

Zwracane wartości

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

Tabela 1. 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).

Rejestr zmian

Wersja	Opis
5.1.1	Added the current object as a possible return element.

Przykłady

Przykład 1. debug_backtrace() example

<?php
// filename: a.php

                
function a_test($str)

                {

                    echo "\nHi: $str";

                    var_dump(debug_backtrace());

                }

                
a_test('friend');
?>


                <?php
// filename: 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"
  }
}

Patrz także

trigger_error()

debug_print_backtrace()

Poprzedni	Spis treści	Następny
Identyfikacja błędów i kontrola pracy	Początek rozdziału	debug_print_backtrace