#47320 [Opn]: $php_errormsg out of scope in functions

From: Date: Thu, 05 Feb 2009 23:55:56 +0000
Subject: #47320 [Opn]: $php_errormsg out of scope in functions
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-133552@lists.php.net to get a copy of this message 
 ID:               47320
 Updated by:       mattwil@php.net
 Reported By:      danielc at analysisandsolutions dot com
 Status:           Open
 Bug Type:         Scripting Engine problem
 Operating System: *
 PHP Version:      5.3.0beta1
 New Comment:

Caused, and missed, by Dmitry's lazy EG(active_symbol_table)
initialization? http://news.php.net/php.cvs/49754


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

[2009-02-05 23:48:06] danielc at analysisandsolutions dot com

Compared to 5.2.6.

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

[2009-02-05 23:45:07] jani@php.net

Compared to what version?

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

[2009-02-05 23:12:59] danielc at analysisandsolutions dot com

Description:
------------
The scope of $php_errormsg has changed in 5.3.  It is no longer
available inside functions.

Perhaps this is intentional, perhaps not.  If it is intentional, I
encourage the decision be changed to improve compatibility between
versions.

If it won't be changed, we need to update the 5.3 upgrade guide at
http://wiki.php.net/doc/scratchpad/upgrade/53.

Reproduce code:
---------------
if (!@substr('no 2nd parameter')) {
    echo '$php_errormsg in global: ' . $php_errormsg . "\n";
}

function foo() {
    if (!@substr('no 2nd parameter')) {
        echo '$php_errormsg in function: ' . $php_errormsg . "\n";

        echo '$GLOBALS[php_errormsg] in function: ' .
                $GLOBALS['php_errormsg'] . "\n";
    }
}

foo();


Expected result:
----------------
$php_errormsg in global: substr() expects at least 2 parameters, 1
given
$php_errormsg in function: substr() expects at least 2 parameters, 1
given
$GLOBALS[php_errormsg] in function: substr() expects at least 2
parameters, 1 given


Actual result:
--------------
$php_errormsg in global: substr() expects at least 2 parameters, 1
given


Notice:  Undefined variable: php_errormsg in
D:\webroot\ideasphp\Atest.html on line 10

$php_errormsg in function: 
$GLOBALS[php_errormsg] in function: substr() expects at least 2
parameters, 1 given



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