#47334 [Opn->Bgs]: debug_backtrace() gives incorrect 'type' value

[iliaa]

 ID:               47334
 Updated by:       il...@php.net
 Reported By:      php at kennel17 dot co dot uk
-Status:           Open
+Status:           Bogus
 Bug Type:         Scripting Engine problem
 Operating System: Win32
 PHP Version:      5.2.9RC1
 New Comment:

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

StaticFunc is not defined as static call, hence ->.


Previous Comments:
------------------------------------------------------------------------

[2009-02-07 14:32:32] php at kennel17 dot co dot uk

Description:
------------
The 'type' attribute returned by debug_backtrace() seems to always be
set to "->" in PHP5, but was correctly set to "::" for static calls in
PHP4.  I have tested this on 5.2.8, 5.2.9RC1 and 5.3.0beta1 and it
applies to all of these.

In the example code, StaticFunc() is called statically from
OtherFunc(), so the type field should contain "::", which it does in
PHP4, but in PHP5 it contains "->", as you can see in the results
below.

Note that this also affects debug_print_backtrace(), which gives the
following output:

#0  MyClass->StaticFunc() called at [example.php:11]
#1  MyClass->OtherFunc() called at [example.php:16]

instead of what you would expect:

#0  MyClass::StaticFunc() called at [example.php:11]
#1  MyClass->OtherFunc() called at [example.php:16]


Reproduce code:
---------------
<?php

class MyClass {
        
        function StaticFunc() {
                print_r(debug_backtrace());
        }
        
        function OtherFunc() {
                MyClass::StaticFunc();
        }
}

$c = new MyClass;
$c->OtherFunc();

?>

Expected result:
----------------
PHP4 produces this, which is the expected result.  Note the 'type'
field in element [0].

Array
(
    [0] => Array
        (
            [file] => example.php
            [line] => 11
            [function] => staticfunc
            [class] => myclass
            [type] => ::
            [args] => Array
                (
                )

        )

    [1] => Array
        (
            [file] => example.php
            [line] => 16
            [function] => otherfunc
            [class] => myclass
            [type] => ->
            [args] => Array
                (
                )

        )

)


Actual result:
--------------
PHP5 gives the following:

Array
(
    [0] => Array
        (
            [file] => example.php
            [line] => 11
            [function] => StaticFunc
            [class] => MyClass
            [object] => MyClass Object
                (
                )

            [type] => ->
            [args] => Array
                (
                )

        )

    [1] => Array
        (
            [file] => example.php
            [line] => 16
            [function] => OtherFunc
            [class] => MyClass
            [object] => MyClass Object
                (
                )

            [type] => ->
            [args] => Array
                (
                )

        )
)


------------------------------------------------------------------------


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