Option to check if the parameter is set but empty

Adjusted the code a little to check if a parameter like FirstName was set but if it doesn’t contain any value : [ifurlparam param=”FirstName” notempty=1] Welcome Back [/ifurlparam]

============== The Code ==============

function ifurlparam($atts, $content) {
$atts = shortcode_atts(array(

‘param’ => ”,
’empty’ => false,
‘is’ => false,
‘notempty’ => false,

), $atts);

$params = preg_split(‘/\,\s*/’,$atts[‘param’]);

if ($atts[‘notempty’] && (strlen($_REQUEST[$param]) != 0) )
{
return do_shortcode($content);
}

foreach($params as $param)
{
if($_REQUEST[$param])
{
if($atts[’empty’])
{
return ”;
} elseif(!$atts[‘is’] or ($_REQUEST[$param] == $atts[‘is’])) {
return do_shortcode($content);
}
}
}

if ($atts[’empty’])
{
return do_shortcode($content);
}

return ”;
}