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Bug #7717 No access to server & session variables from within a class
Submitted: 2000-11-09 05:08 UTC Modified: 2000-11-09 05:23 UTC
From: p_vruggink at wish dot net Assigned:
Status: Closed Package: Class/Object related
PHP Version: 4.0.2 OS: win98/2000, Apache 1.3.12
Private report: No CVE-ID: None
View Developer Edit
 [2000-11-09 05:08 UTC] p_vruggink at wish dot net 
You can't access servervariables (e.g. $DOCUMENT_ROOT, $SERVER_NAME) or access sessionvariables directly from within a class, although you can start/stop a session within a class. Is there a class environment in PHP?

testscripts
MyRoot.php:
<?php
class MyRoot
{
  function getMyRoot()
  {
    return $DOCUMENT_ROOT;
  }
}
?>
MySession.php
<?php
class MySession
{
  function setMySession()
  {
    if(session_register("myVar"))
    {
      $myVar = "Test";
      return true;
    }
    else return false;
  }
}
?>
Test.php
<?php
  include("MyRoot.php");
  include("MySession.php");

  $root = new MyRoot();
  $sess = new MySession();

  if( $sess -> setMySession())
  {
    print "<HTML><BODY>";
    print "Session has been initiated  (id: " . session_id() . ")<BR>";
	print "session_is_registered (\"myVar\"): ";
	print session_is_registered ("myVar") ? " yes": " no";
	print "<BR>";
    print "DocumentRoot: " . $root -> getMyRoot() . "<BR>";
    print "SessionVarValue: " . $myVar;
    print "</BODY></HTML>";
  }
?>

Regards and thanks for PHP!

Peter

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 [2000-11-09 05:23 UTC] hholzgra@php.net 
as usual you have to use 'global $variable;' to get access
to a global variable from within a function or a class method
or use the special GLOBALS array: $GLOBALS['variable']

PHP functions do _not_ inherit the global namespace by default
 
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