SimpleSAML_Utilities::resolveURL PHP Method

    public static function resolveURL($url, $base = null)
    {
        return \SimpleSAML\Utils\HTTP::resolveURL($url, $base);
    }

function showEntry($t, $metadata, $favourite = FALSE)
{
    $basequerystring = '?' . 'entityID=' . urlencode($t->data['entityID']) . '&' . 'return=' . urlencode($t->data['return']) . '&' . 'returnIDParam=' . urlencode($t->data['returnIDParam']) . '&idpentityid=';
    $extra = $favourite ? ' favourite' : '';
    $html = '<a class="metaentry' . $extra . '" href="' . $basequerystring . urlencode($metadata['entityid']) . '">';
    $html .= '' . htmlspecialchars(getTranslatedName($t, $metadata)) . '';
    #print_r($metadata['scopes']);
    // if (!empty($idpentry['description'])) {
    // 	$html .= '	<p>' . htmlspecialchars($t->t('idpdesc_' . $metadata['entityid'])) . '<br />';
    // }
    if (array_key_exists('icon', $metadata) && $metadata['icon'] !== NULL) {
        $iconUrl = SimpleSAML_Utilities::resolveURL($metadata['icon']);
        $html .= '<img alt="Icon for identity provider" class="entryicon" src="' . htmlspecialchars($iconUrl) . '" />';
    }
    // $html .= '<input id="preferredidp" type="submit" name="idp_' .
    // 	htmlspecialchars($metadata['entityid']) . '" value="' .
    // 	$t->t('select') . '" /></p>';
    $html .= '</a>';
    return $html;
}