包含phpipv4地址歸屬地數據庫的詞條

本文目錄一覽：

• 1、php用IP查詢歸屬地
• 2、php怎樣獲取本機的ipv4地址
• 3、php獲取了ip地址，用php怎麼獲取ip的地理位置？請大蝦賜教！

php用IP查詢歸屬地

class ip_location

{

function init()

{

$this-wrydat = ‘ip_area.dat’;

$this-fp = fopen($this-wrydat, ‘rb’);

$this-getipnumber();

$this-getwryversion();

$this – REDIRECT_MODE_0 = 0;

$this – REDIRECT_MODE_1 = 1;

$this – REDIRECT_MODE_2 = 2;

}

function get($str)

{

return $this-$str;

}

function set($str,$val)

{

$this-$str = $val;

}

function getbyte($length,$offset=null)

{

!is_null($offset) fseek($this-fp, $offset, SEEK_SET);

return fread($this-fp, $length);

}

function packip($ip)

{

return pack(‘N’, intval(ip2long($ip)));

}

function getlong($length=4, $offset=null)

{

$chr=null;

for($c=0;$length%4!=0$c(4-$length%4);$c++)

{

$chr .= chr(0);

}

$var = unpack( ‘Vlong’, $this-getbyte($length, $offset).$chr);

return $var[‘long’];

}

function getwryversion()

{

$length = preg_match(“/coral/i”,$this-wrydat)?26:30;

$this-wrydat_version = $this-getbyte($length, $this-firstip-$length);

}

function getipnumber()

{

$this-firstip = $this-getlong();

$this-lastip = $this-getlong();

$this-ipnumber = ($this-lastip-$this-firstip)/7+1;

}

function getstring($data=”, $offset=NULL)

{

$char = $this-getbyte(1,$offset);

while(ord($char) 0)

{

$data .= $char;

$char = $this-getbyte(1);

}

return $data;

}

function iplocaltion($ip)

{

$ip = $this-packip($ip);

$low = 0;

$high = $this-ipnumber-1;

$ipposition = $this-lastip;

while($low = $high)

{

$t = floor(($low+$high)/2);

if($ip strrev($this-getbyte(4,$this-firstip+$t*7)))

$high = $t – 1;

else

{

if($ip strrev($this-getbyte(4,$this-getlong(3))))

$low = $t + 1;

else

{

$ipposition = $this-firstip+$t*7;

break;

}

}

}

return $ipposition;

}

function getarea()

{

$b = $this-getbyte(1);

switch(ord($b))

{

case $this – REDIRECT_MODE_0 :

return ”;

break;

case $this – REDIRECT_MODE_1:

case $this – REDIRECT_MODE_2:

return $this-getstring(”,$this-getlong(3));

break;

default:

return $this-getstring($b);

break;

}

}

function getiplocation($ip)

{

$ippos = $this-iplocaltion($ip);

$this-ip_range_begin = long2ip($this-getlong(4,$ippos));

$this-ip_range_end = long2ip($this-getlong(4,$this-getlong(3)));

$b = $this-getbyte(1);

switch(ord($b))

{

case $this – REDIRECT_MODE_1:

$b = $this-getbyte(1,$this-getlong(3));

if(ord($b) == $this – REDIRECT_MODE_2)

{

$countryoffset = $this-getlong(3);

$this-area = $this-getarea();

$this-country = $this-getstring(”,$countryoffset);

}

else

{

$this-country = $this-getstring($b);

$this-area = $this-getarea();

}

break;

case $this – REDIRECT_MODE_2:

$countryoffset = $this-getlong(3);

$this-area = $this-getarea();

$this-country = $this-getstring(”,$countryoffset);

break;

default:

$this-country = $this-getstring($b);

$this-area = $this-getarea();

break;

}

}

}

—————————————————————

調用方法:

$iploca = new ip_location;

$iploca – init();

$iploca – getiplocation($ip);

$area[‘country’] = str_replace(array(‘CZ88.NET’), ”, $iploca – get(‘country’));

$area[‘area’] = str_replace(array(‘CZ88.NET’), ”, $iploca – get(‘area’));

$area[‘country’]==” $area[‘country’]=’未知’;

$area[‘area’]==” $area[‘area’]=’未知’;

return $area;

php怎樣獲取本機的ipv4地址

// 通過$_SERVER變量

echo $_SERVER[‘SERVER_ADDR’];

// 通過執行操作符，等同於在命令行下執行該命令，要獲取ip的根據返回內容截取

$output = `ipconfig`;

echo ‘pre’.$output.’/pre’;

// 通過system函數，功能與執行操作符一樣

echo ‘pre’;

$last_line = system(‘ipconfig’, $retval);

echo ‘

/pre

hr /Last line of the output: ‘ . $last_line . ‘

hr /Return value: ‘ . $retval;

php獲取了ip地址，用php怎麼獲取ip的地理位置？請大蝦賜教！

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