http://www.bkjia.com/phpjc/532403.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/532403.htmltecharticle?php /* 如:192.16.1.13 与:255.255.255.0 进行,,与算,,要求出它为192.16.1.0 */ $ip = “192.16.1.13”; echo get_net($ip,”255.255.255.0″); function get_net($ip,$hide=”255.255.2…