Magento how can i read rule_condition_product code

 Magento how can i read rule_condition_product code


a:7:{s:4:"type";s:40:"salesrule/rule_condition_product_combine";s:9:"attribute";N;s:8:"operator";N;s:5:"value";s:1:"1";s:18:"is_value_processed";N;s:10:"aggregator";s:3:"any";s:10:"conditions";a:3:{i:0;a:5:{s:4:"type";s:32:"salesrule/rule_condition_product";s:9:"attribute";s:5:"price";s:8:"operator";s:2:"<=";s:5:"value";d:500;s:18:"is_value_processed";b:0;}i:1;a:5:{s:4:"type";s:36:"productlabels/rule_condition_product";s:9:"attribute";s:3:"qty";s:8:"operator";s:2:"<=";s:5:"value";s:3:"100";s:18:"is_value_processed";b:0;}i:2;a:5:{s:4:"type";s:32:"salesrule/rule_condition_product";s:9:"attribute";s:3:"sku";s:8:"operator";s:2:"{}";s:5:"value";s:3:"TC1";s:18:"is_value_processed";b:0;}}}