Bug #79827 [Opn->Dup]: debug_backtrace() does not return passed args

From: Date: Fri, 10 Jul 2020 14:10:36 +0000
Subject: Bug #79827 [Opn->Dup]: debug_backtrace() does not return passed args
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-227940@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=79827&edit=1

 ID:                 79827
 Updated by:         nikic@php.net
 Reported by:        michael dot vorisek at email dot cz
 Summary:            debug_backtrace() does not return passed args
-Status:             Open
+Status:             Duplicate
 Type:               Bug
 Package:            Scripting Engine problem
 Operating System:   any
 PHP Version:        7.4.8
 Block user comment: N
 Private report:     N

 New Comment:

Duplicate of bug #71547.


Previous Comments:
------------------------------------------------------------------------
[2020-07-10 14:08:03] michael dot vorisek at email dot cz

Description:
------------
debug_backtrace() currently returns args by reference, ie. the returned args variables, not the
passed values.

Very hard to debug, backtrace should always return the passed data.

Test script:
---------------
function x(string $filename) {
    $filename = realpath($filename);
    
    $trace = debug_backtrace();
    var_dump($trace[0]['args']);
}

x('non_existing_file.txt');

Expected result:
----------------
array(1) {
  [0]=>
  bool(false)
}

Actual result:
--------------
array(1) {
  [0]=>
  string(21) "non_existing_file.txt"
}


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



--
Edit this bug report at https://bugs.php.net/bug.php?id=79827&edit=1

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