PYTHON debug_backtrace

is this article helpful?
|
Python replacement for PHP's debug_backtrace [ edit | history ]
import traceback

traceback.extract_stack() # for a raw version
traceback.format_stack() # for a formatted version

It does not include the values of parameters, though.

PHP debug_backtrace

PHP original manual for debug_backtrace [ show | php.net ]

debug_backtrace

(PHP 4 >= 4.3.0, PHP 5)

debug_backtraceGenerates a backtrace

Description

array debug_backtrace ([ bool $provide_object= true ] )

debug_backtrace() generates a PHP backtrace.

Parameters

provide_object

Whether or not to populate the "object" index. Defaults to TRUE.

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"
  }
}

See Also