$vbulletin->input->clean_array_gpc('p', array(
	'variable'         => type,
..........
	));
مثل 

$vbulletin->input->clean_array_gpc('p', array(
		'wysiwyg'         => TYPE_BOOL,
		'message'         => TYPE_STR,

..........
	));

 $vbulletin->input->clean_gpc('p', 'posthash', TYPE_NOHTML);

$vbulletin->GPC['إسم المتغير']
مثل
$vbulletin->GPC['wysiwyg']

define('TYPE_NOCLEAN',      0); // no change 
define('TYPE_BOOL',     1); // force boolean 
define('TYPE_INT',      2); // force integer
define('TYPE_UINT',     3); // force unsigned integer
define('TYPE_NUM',      4); // force number 
define('TYPE_UNUM',     5); // force unsigned number
define('TYPE_UNIXTIME', 6); // force unix datestamp (unsigned integer)
define('TYPE_STR',      7); // force trimmed string //
define('TYPE_NOTRIM',   8); // force string - no trim
define('TYPE_NOHTML',   9); // force trimmed string with HTML made safe
define('TYPE_ARRAY',   10); // force array
define('TYPE_FILE',    11); // force file
define('TYPE_BINARY',  12); // force binary string
define('TYPE_NOHTMLCOND', 13); // force trimmed string with HTML made safe if determined to be unsafe