php_PHP チュートリアルでアクセス IP を決定する方法

phpでアクセスIPを決定する方法

この記事では主に、サーバーサイドの事前定義変数$_SERVERのPHP関連の判断と使用スキルを含む、PHPでアクセスIPを決定する方法を紹介します。

この記事の例では、PHP がアクセス IP を決定する方法について説明します。皆さんの参考に共有してください。詳細は以下の通りです

<?php 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; } ?>
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; } ?>
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; } ?>
$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; } ?>
} 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; } ?>
$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; } ?>
} 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; } ?>
$cip = $_SERVER ["REMOTE_ADDR"]; } else { $cip = ''; } preg_match ( "/[d.]{7,15}/", $cip, $cips ); $cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
} else { $cip = ''; } preg_match ( "/[d.]{7,15}/", $cip, $cips ); $cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
$cip = ''; } preg_match ( "/[d.]{7,15}/", $cip, $cips ); $cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
} preg_match ( "/[d.]{7,15}/", $cip, $cips ); $cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
preg_match ( "/[d.]{7,15}/", $cip, $cips ); $cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
$cip = isset ( $cips [0] ) ? $cips [0] : 'unknown'; unset ( $cips ); return $cip; } ?>
unset ( $cips ); return $cip; } ?>
return $cip; } ?>
} ?>
?>