Zend Framework Complex Where Statement

Question

This method is published as offical example

->where(\"price < $minimumPrice OR price > $maximumPrice\") is such method safe?

want to write it as ->where

Answer 1

$select->where($db->quoteInto('field1 < ? OR', $minPrice)
             . $db->quoteInto('field1 > ?', $maxPrice))
       ->where($db->quoteInto('field2 < ? OR', $value2)
             . $db->quoteInto('field2 > ?', $value3));