<?
$yourip=$REMOTE_ADDR; //得到访问者的ip地址
ereg("\d+\.\d+\.(\d+)\.\d+",$yourip,$regs);
$yourippart= $regs[1];//我来帮你来完成,需要第几段,就给第几段加括号
echo $yourippart;
?>
$yourip=$REMOTE_ADDR; //得到访问者的ip地址
ereg("\d+\.\d+\.(\d+)\.\d+",$yourip,$regs);
$yourippart= $regs[1];//我来帮你来完成,需要第几段,就给第几段加括号
echo $yourippart;
?>
$yourip=$REMOTE_ADDR;
$yourippart=substr($yourip,0,strpos($yourip,'.'));
echo $yourippart;
?>
$yourip=$REMOTE_ADDR;
$array=explode('.',$yourip);
$yourippart=$array[0];
echo $yourippart;
?>
$yourip = $REMOTE_ADDR;
$yourippart = preg_replace('/^(\d{1,3}\.\d{1,3}\.\d{1,3})\.\d{1,3}$/', '\\1', $yourip);
echo $yourippart;
?>