From: Operating system: Debian PHP version: 5.3.5 Package: Unknown/Other Function Bug Type: Bug Bug description:_SERVER, _ENV access via $$ shows Notice
Description: ------------ If you access $_ENV or $_SERVER the indirect way, via ${'_SERVER'} you get an E_NOTICE message. Please see my test scripts. Test script: --------------- Producing the bug: <?php error_reporting(E_ALL | E_STRICT); $x = '_SERVER'; print_r($$x); // Notice: Undefined variable: _SERVER ?> Workaround with dummy function which "touches" the variable: <?php error_reporting(E_ALL | E_STRICT); function dummy($dummy) {} dummy($_SERVER); // "Touch" $x = '_SERVER'; print_r($$x); // Everything is OK! ?> Expected result: ---------------- I don't expect an message that $_SERVER or $_ENV are not valid variables. I kept searching for hours because I couldn't find any reason, why $_SERVER disappears, but is visible in phpinfo(). I do not know why I have to "touch" these super- globals first, so that they get "active". -- Edit bug report at http://bugs.php.net/bug.php?id=54131&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54131&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54131&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54131&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54131&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54131&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54131&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54131&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54131&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54131&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54131&r=support Expected behavior: http://bugs.php.net/fix.php?id=54131&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54131&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54131&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54131&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54131&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54131&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54131&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54131&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54131&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54131&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54131&r=mysqlcfg