php限制ip地址范围的方法
只有在限定范围内的ip地址才能访问
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function get_real_ipaddress() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) { return $_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { return $_SERVER['HTTP_X_FORWARDED_FOR']; } return $_SERVER['REMOTE_ADDR']; } function in_ip_range($ip, $ip_one, $ip_two = false) { if(!$ip_two) { return $ip_one === $ip; } return ip2long($ip_one) * -1 >= ip2long($ip) * -1 && ip2long($ip_two) * -1 } function validate_ip() { $ip = explode(':', get_real_ipaddress()); $ip = $ip[0]; if(in_ip_range($ip, '212.76.229.115', '212.76.229.120')) { return true; } else if(in_ip_range($ip, '194.78.4.66', '194.78.4.79')) { return true; } else if(in_ip_range($ip, '194.8.4.78', '194.8.4.78')) { return true; } else if(in_ip_range($ip, '0', '1')) { // local return true; } header('Location: http://www.bkjia.net'); } |
希望本文所述对大家的php程序设计有所帮助。

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