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] : 'unknown';
- unset ( $cips );
- return $cip;
- }
-
- ?>
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