アクセスIPの決定

判断访问IP

function getIP() {
 if (! empty ( $_SERVER ["HTTP_CLIENT_IP"] )) {
 $cip = $_SERVER ["HTTP_CLIENT_IP"];
 } else if (! empty ( $_SERVER ["HTTP_X_FORWARDED_FOR"] )) {
 $cip = $_SERVER ["HTTP_X_FORWARDED_FOR"];
 } else if (! empty ( $_SERVER ["REMOTE_ADDR"] )) {
 $cip = $_SERVER ["REMOTE_ADDR"];
 } else {
 $cip = '';
 }
 preg_match ( "/[d.]{7,15}/", $cip, $cips );
 $cip = isset ( $cips [0] ) ? $cips [0] : '不明';
 設定を解除 ( $cips );
 $cip を返します。
}

?>