EmlogPro显示评论者的IP地理位置非插件

Emlog 评论显示IP地理信息的两种方法，可以为你的博客评论区增加已评论者的IP地理位置显现，也不算什么有用的功能，看别的网站都有所以就加上了，还有就是《使用了cdn获取不到真实IP的解决办法》看这篇文章。
第一步：把下面代码添加到你模板的module.php文件内:

1. <?php
2. //获取 IP 地理地址
3. $data = '254.254.254.254';
4. class IpLocation {
5. var $fp;
6. var $firstip;
7. var $lastip;
8. var $totalip;
9. function getlong() {
10. $result = unpack('Vlong', fread($this->fp, 4));
11. return $result['long'];
12. }
13. function getlong3() {
14. $result = unpack('Vlong', fread($this->fp, 3).chr(0));
15. return $result['long'];
16. }
17. function packip($ip) {
18. return pack('N', intval(ip2long($ip)));
19. }
20. function getstring($data = "") {
21. $char = fread($this->fp, 1);
22. while (ord($char) > 0) {
23. $data .= $char;
24. $char = fread($this->fp, 1);
25. }
26. return $data;
27. }
28. function getarea() {
29. $byte = fread($this->fp, 1);
30. switch (ord($byte)) {
31. case 0:
32. $area = "";
33. break;
34. case 1:
35. case 2:
36. fseek($this->fp, $this->getlong3());
37. $area = $this->getstring();
38. break;
39. default:
40. $area = $this->getstring($byte);
41. break;
42. }
43. return $area;
44. }
45. function getlocation($ip) {
46. if (!$this->fp) return null;
47. $location['ip'] = gethostbyname($ip);
48. $ip = $this->packip($location['ip']);
49. $l = 0;
50. $u = $this->totalip;
51. $findip = $this->lastip;
52. while ($l <= $u) {
53. $i = floor(($l + $u) / 2);
54. fseek($this->fp, $this->firstip + $i * 7);
55. $beginip = strrev(fread($this->fp, 4));
56. if ($ip < $beginip) {
57. $u = $i - 1;
58. }
59. else {
60. fseek($this->fp, $this->getlong3());
61. $endip = strrev(fread($this->fp, 4));
62. if ($ip > $endip) {
63. $l = $i + 1;
64. }
65. else {
66. $findip = $this->firstip + $i * 7;
67. break;
68. }
69. }
70. }
71. fseek($this->fp, $findip);
72. $location['beginip'] = long2ip($this->getlong());
73. $offset = $this->getlong3();
74. fseek($this->fp, $offset);
75. $location['endip'] = long2ip($this->getlong());
76. $byte = fread($this->fp, 1);
77. switch (ord($byte)) {
78. case 1:
79. $countryOffset = $this->getlong3();
80. fseek($this->fp, $countryOffset);
81. $byte = fread($this->fp, 1);
82. switch (ord($byte)) {
83. case 2:
84. fseek($this->fp, $this->getlong3());
85. $location['country'] = $this->getstring();
86. fseek($this->fp, $countryOffset + 4);
87. $location['area'] = $this->getarea();
88. break;
89. default:
90. $location['country'] = $this->getstring($byte);
91. $location['area'] = $this->getarea();
92. break;
93. }
94. break;
95. case 2:
96. fseek($this->fp, $this->getlong3());
97. $location['country'] = $this->getstring();
98. fseek($this->fp, $offset + 8);
99. $location['area'] = $this->getarea();
100. break;
101. default:
102. $location['country'] = $this->getstring($byte);
103. $location['area'] = $this->getarea();
104. break;
105. }
106. if ($location['country'] == " CZNET") {
107. $location['country'] = "未知";
108. }
109. if ($location['area'] == " CZNET") {
110. $location['area'] = "";
111. }
112. return $location;
113. }
114. function IpLocation($filename = "qqwry.dat") {
115. $this->fp = 0;
116. if (($this->fp = @fopen($filename, 'rb')) !== false) {
117. $this->firstip = $this->getlong();
118. $this->lastip = $this->getlong();
119. $this->totalip = ($this->lastip - $this->firstip) / 7;
120. register_shutdown_function(array(&$this, '_IpLocation'));
121. }
122. }
123. function _IpLocation() {
124. if ($this->fp) {
125. fclose($this->fp);
126. }
127. $this->fp = 0;
128. }
129. }
130. function getaddress($myip){
131. $ipOrDomain=$myip;
132. $iplocation = new IpLocation();
133. $location = $iplocation->getlocation($ipOrDomain);
134. $address=mb_convert_encoding($location['country'].$location['area'], "utf-8", "gbk");
135. return $address;
136. }
137. ?>

然后在需要显示的地方插入以下代码：

1. <?php echo getaddress($comment['ip']);?>

另外一种是通过远程网站相关接口实现。
在module.php中添加以下代码：

1. <?php
2. //blog：获取 IP 地址所在地，提取新浪 IP 接口
3. function getaddress($ip)
4. {
5. //调用 sina 查询接口
6. $str = file_get_contents("http://counter.sina.com.cn/ip ip=".$ip);
7. //转换字符集
8. $str = mb_convert_encoding($str,"UTF-8","GBK");
9. //匹配结果
10. preg_match_all('/[\x{4e00}-\x{9fa5}]+/u',$str,$get);
11. //将数组转换成字符串
12. $add = implode('-',$get[0]);
13. //返回结果
14. return $add;
15. }
16. ?>

然后在需要显示的地方插入以下代码：

1. <?php echo getaddress($comment['ip']);?>

图片显示方法：

1. <a title= <?php echo getaddress($comment['ip']);?>>&nbsp;<img src="./ip.png"></a>

其中ip.png这个图标会显示在评论人的后面，鼠标放上去会显示地理地址。