displaying members that has log in on my site
I have a website on which registered members can log in. I would like to be able to display the members that logged in on my website in last 15 minutes.
Many sites have this feature especially forums.
For that purpose, I have created the following table in my database:
On my validateMembers page (this is the page that verify that member can login) after the validation I have the following code:
CREATE TABLE IF NOT EXISTS `whoisonline` (
`recordid` int(11) NOT NULL AUTO_INCREMENT,
`memberid` int(11) NOT NULL,
`lastlogin` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`loggedfromip` varchar(255) NOT NULL,
PRIMARY KEY (`recordid`),
KEY `memberidwho` (`memberid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ;
At this time, insert works, but in php my admin, the inserted record display "0000-00-00 00:00:00" in the field lastlogin. But that is not my only problem. I am wondering how I will make the select after, to check which members are logged in in the last 15 minutes.
$lastlogin = time();
$query1 = "INSERT INTO whoisonline VALUES (NULL,'$memberid', '$lastlogin', '$loggedfromip')";
Can anyone help me to solve this?
Thanks in advance,