Code:
session_name("PHPSESSID");
session_start();
$enter = $_SESSION['enter'];
Code:
if($enter==""){
$entercount = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM ibwf_chat WHERE msgtext='enters room' AND chatter='".$uid."' AND rid='".$rid."'"));
$onlinecount = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM ibwf_chonline WHERE rid='".$rid."' and uid='".$uid."'"));
if(($entercount[0]==0)&&($onlinecount[0]==0))
{
mysql_query("INSERT INTO ibwf_chat SET chatter='".$uid."',*who='0',*timesent='".time()."' ,*msgtext='enters room', rid='".$rid."'");
}
$tm = time();
$_SESSION['enter'] = $tm;
}
in chat room 

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