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Bug #22729 GLOBALS is set and is not set in the same time
Submitted: 2003-03-15 09:40 UTC Modified: 2003-03-26 13:25 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: andry at inbox dot ru Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 4.3.0, 4.2.2 OS: WindowXP/5.1, FreeBSD 4.6-STABLE
Private report: No CVE-ID: None
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From: andry at inbox dot ru
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 [2003-03-15 09:40 UTC] andry at inbox dot ru 
<?php
header("Content-Type: text/html; charset=windows-1251");
header("X-Powered-By: PHP 4.3.0");
header("Pragma: no-cache");
echo "<?xml version=\"1.0\" encoding=\"windows-1251\" ?>"
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title></title>
<meta http-equiv="Content-Language" content="en" />
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251" />
<meta http-equiv="Resource-Type" content="php script for debugging" />
<meta http-equiv="Expires" content="Thu, Jan 1 1970 00:00:01 GMT" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Cache-Control" content="no-cache" />
<meta http-equiv="Distribution" content="local" /></head>

<?php
$sBehavior = array("<strong><span style=\"color:#00ff00;background-color:#e8f5e8;\">SET</span></strong>",
                   "<strong><span style=\"color:#ff0000;background-color:#f5e8e8;\">NOT set</span></strong>");

function proc_test($dNames)
{
  // #ID0002
  // Without this declaration, script doesn't works,
  // because i think that $sBehavior doesn't expecting in this area of code,
  // and #ID0001-code never executed!
  global $sBehavior;

  
  if(!isset($dNames))
    // #ID0001
    // Never executed for the unknown reason, if #ID0002 block of code is commented.
    // I have had suspecting, that is dNames exists, but always empty.
    echo "<strong>dNames</strong> global system arrays enumerator doesn't exist!";
  else
    foreach($dNames as $sValue)
    {
      if(isset($bIndent)) echo "<br />";
      else $bIndent = true;
      if(isset($$sValue)) echo "<strong>$sValue</strong> is $sBehavior[0]";
      else echo "<strong>$sValue</strong> is $sBehavior[1]";
    }
}

$dNames = array('GLOBALS', '_SERVER', '_FILES', '_ENV', '_COOKIE', '_GET', '_POST');

echo "<h4>This is script has been tested under"
  . " [PHP Version 4.3.0 (NOT module), Apache/2.0.43 Server at localhost Port 80,"
  . " WindowXP/5.1 Build 2600.xpsp1.020828-1920]"
  . " and [PHP Version 4.2.2, Apache/1.3.26 (Unix) rus/PL30.15,"
  . " FreeBSD 4.6-STABLE #12 Build Jul 24 2002 15:29:54]"
  . "<br />This is script works correctly there is the global system arrays is works too.</h4><hr>";

echo "<em>Function/procedure behavior with global system arrays enumerator.</em><br />";
proc_test($dNames);

echo "<br /><hr /><em>Global behavior with global system arrays enumerator.</em><br />";
foreach($dNames as $sValue)
{
  if(isset($bIndent)) echo "<br />";
  else $bIndent = true;
  if(isset($$sValue)) echo "<strong>$sValue</strong> is $sBehavior[0]";
  else echo "<strong>$sValue</strong> is $sBehavior[1]";
}

// Without this is block of code, full script has suspicious behavior.
// This is VERY strange.
// Uncomment this is block of code and review the results!
/*echo "<br /><hr /><em>Global behavior with static access.</em><br />";
if(isset($GLOBALS)) echo "<strong>GLOBALS</strong> is $sBehavior[0]";
else echo "<strong>GLOBALS</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_SERVER)) echo "<strong>_SERVER</strong> is $sBehavior[0]";
else echo "<strong>_SERVER</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_FILES)) echo "<strong>_FILES</strong> is $sBehavior[0]";
else echo "<strong>_FILES</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_ENV)) echo "<strong>_ENV</strong> is $sBehavior[0]";
else echo "<strong>_ENV</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_COOKIE)) echo "<strong>_COOKIE</strong> is $sBehavior[0]";
else echo "<strong>_COOKIE</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_GET)) echo "<strong>_GET</strong> is $sBehavior[0]";
else echo "<strong>_GET</strong> is $sBehavior[1]";
echo "<br />";
if(isset($_POST)) echo "<strong>_POST</strong> is $sBehavior[0]";
else echo "<strong>_POST</strong> is $sBehavior[1]";*/

echo "<br /><hr /><br /><u>Please, research the source.</u>";

?>

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 [2003-03-15 09:49 UTC] andry at inbox dot ru 
summary correcting
 [2003-03-15 20:45 UTC] pollita@php.net 
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. 

Thank you for your interest in PHP.

Hint: You've got a logic error in proc_test().
 [2003-03-26 13:24 UTC] sniper@php.net 
Provide SHORT example script, MAXIMUM of 20 lines.
 
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