简单验证IPv6的PHP代码

原创

2016-06-08 17:27:551414浏览

$ip="2001:0db8:85a3:08d3:1319:8a2e:0370:7334";

02 //$ip="2001:0db8:85a3:08d3::7334";

03 if(filter_var($ip,FILTER_VALIDATE_IP,FILTER_FLAG_IPV6)！=false)

04

05 {

06 echo $ip." is an IPv6 Address";

07 }else

08 {

09 echo $ip." is NOT an IPv6 Address";

10 }

11 //PHP 5.2.0.x版本通过测试

filter_var() 函数通过指定的过滤器过滤变量。
如果成功，则返回已过滤的数据，如果失败，则返回 false

02 // literally from the ABNF in rfc3986 (thanks to 'WCP')

03 function validateIPv6($IP)

04 {

05 return preg_match('/A

06 (?:

07 (?:

08 (?:[a-f0-9]{1,4}:){6}

09 |

10 ::(?:[a-f0-9]{1,4}:){5}

11 |

12 (?:[a-f0-9]{1,4})?::(?:[a-f0-9]{1,4}:){4}

13 |

14 (?:(?:[a-f0-9]{1,4}:){0,1}[a-f0-9]{1,4})?::(?:[a-f0-9]{1,4}:){3}

15 |

16 (?:(?:[a-f0-9]{1,4}:){0,2}[a-f0-9]{1,4})?::(?:[a-f0-9]{1,4}:){2}

17 |

18 (?:(?:[a-f0-9]{1,4}:){0,3}[a-f0-9]{1,4})?::[a-f0-9]{1,4}:

19 |

20 (?:(?:[a-f0-9]{1,4}:){0,4}[a-f0-9]{1,4})?::

21 )

22 (?:

23 [a-f0-9]{1,4}:[a-f0-9]{1,4}

24 |

25 (?:(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]).){3}

26 (?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])

27 )

28 |

29 (?:

30 (?:(?:[a-f0-9]{1,4}:){0,5}[a-f0-9]{1,4})?::[a-f0-9]{1,4}

31 |

32 (?:(?:[a-f0-9]{1,4}:){0,6}[a-f0-9]{1,4})?::

33 )

34 )Z/ix',

35 $IP

36 );

37 }

38 ?>