cvs: phpweb /include prepend.inc

goba Sat Dec 14 14:38:03 2002 EDT Modified files: /phpweb/include prepend.inc Log: Add unset_variables() for future use Index: phpweb/include/prepend.inc diff -u phpweb/include/prepend.inc:1.11 phpweb/include/prepend.inc:1.12 --- phpweb/include/prepend.inc:1.11 Sat Dec 14 14:05:41 2002 +++ phpweb/include/prepend.inc Sat Dec 14 14:38:03 2002 @@ -49,4 +49,25 @@ return TRUE; } +// Unset all variables except common ones we use +// to access request variables and the globals array +// If all files are register_globals = off safe, then +// this function can be called to get rid of all +// variables, even if register_globals = on +function unset_variables() +{ + // Protect some common variables + $protected = array( + '_GET', '_POST', '_COOKIE', '_SERVER', + '_ENV', '_REQUEST', 'GLOBALS', + ); + + // Go through all global variables + foreach ($GLOBALS as $name => $value) { + if (!in_array($name, $protected)) { + unset($GLOBALS[$name]); + } + } +} + ?>