--- string_api2.php	Tue Aug 18 10:03:39 2009
+++ string_api.php	Tue Aug 18 10:08:24 2009
@@ -267,7 +267,14 @@
 
 		$t_clean_pairs = array();
 		foreach( $t_pairs as $t_key => $t_value ) {
-			$t_clean_pairs[] = rawurlencode( $t_key ) . '=' . rawurlencode( $t_value );
+			if ( is_array( $t_value ) ) {
+				foreach( $t_value as $t_key2 => $t_value2 ) {
+					$t_clean_pairs[] = rawurlencode( $t_key ) . '=' . rawurlencode( $t_value2 );			
+				}
+			}		
+			else { 		
+				$t_clean_pairs[] = rawurlencode( $t_key ) . '=' . rawurlencode( $t_value );
+			}	
 		}
 
 		if ( !empty( $t_clean_pairs ) ) {