i think you don't read any Document isset: http://php.net/manual/en/function.isset.php empty: http://php.net/manual/en/function.empty.php website: http://5go.cc/ QR Code Generator: http://5go.cc/QRCodeGenerator "Sachin Raut" 写入消息 news:CAEg3z6F9m+E=R+c6ndnZLOVcq_BcotUHTy2qNcMvEoS9Uk+kmg@xxxxxxxxxxxxxx.... Happy New Year to all members of PHP group. I just want to know the difference between following 3 statements. Or are they all does the same thing. 1. isset($a) 2. !empty($a) 3. $a!="" Thanks Sachin
