Adding OR query condition for addFieldToFilter Magento
// Adding OR condition to the query $collection->addFieldToFilter( array('sku', 'id'), // columns/field of database table array( // conditions array( // conditions for 'sku' (first field) array('in' => array('text_1', 'text_2', 'text_3')), array('like' => '%text') ), array('gt' => 5) // condition for 'id' (second field) ) );