php gets the IP of the current user, php current user ip_PHP tutorial

<?<span>php
   </span><span>if</span>(<span>$_SERVER</span>['HTTP_CLIENT_IP'<span>]){
     </span><span>$onlineip</span>=<span>$_SERVER</span>['HTTP_CLIENT_IP'<span>];
}</span><span>elseif</span>(<span>$_SERVER</span>['HTTP_X_FORWARDED_FOR'<span>]){
     </span><span>$onlineip</span>=<span>$_SERVER</span>['HTTP_X_FORWARDED_FOR'<span>];
}</span><span>else</span><span>{
     </span><span>$onlineip</span>=<span>$_SERVER</span>['REMOTE_ADDR'<span>];
}
</span><span>/*</span><span> 何问起 hovertree.com </span><span>*/</span>

<span>echo</span> <span>$onlineip</span><span>;

</span>?>