php查询IP地址归属等信息_PHP教程-PHP-Tutorial-php.cn

淘宝公司提供了一个很好用的IP地理信息查询接口。
在这里:http://ip.taobao.com/
TaobaoIPQuery2这个类将极大的简化相关的信息查询。

类 TaobaoIPQuery2 文件：

<span  1</span> <?<span php
</span><span  2</span> <span /*</span><span  Usage:
</span><span  3</span> <span  * $IPInfo = TaobaoIPQuery2::getIPInfo('IPAddress');
</span><span  4</span> 
<span  5</span> <span http://www.cnblogs.com/roucheng/
</span><span  6</span>  <span */</span>
<span  7</span> <span Class</span><span  TaobaoIPQuery2{
</span><span  8</span>     <span private</span> <span static</span> <span $_requestURL</span> = 'http://ip.taobao.com/service/getIpInfo.php'<span ;
</span><span  9</span>     <span public</span> <span static</span> <span function</span> getIPInfo(<span $ip</span><span ){
</span><span 10</span>         <span $long</span> = <span ip2long</span>(<span $ip</span><span );
</span><span 11</span>         <span if</span>(<span $long</span> === 0<span ){
</span><span 12</span>             <span throw</span> <span new</span> <span Exception</span>('IP address error', 5<span );
</span><span 13</span> <span         }
</span><span 14</span>         <span $ip</span>=<span long2ip</span>(<span $long</span><span );
</span><span 15</span>         <span $IPInfo</span> = self::queryIPInfo(<span $ip</span><span );
</span><span 16</span>         <span return</span> self::parseJSON(<span $IPInfo</span><span );
</span><span 17</span> <span     }
</span><span 18</span>     
<span 19</span>     <span private</span> <span static</span> <span function</span> queryIPInfo(<span $ip</span><span ){
</span><span 20</span>         <span $query</span> = <span http_build_query</span>(<span array</span>('ip'=><span $ip</span><span ));
</span><span 21</span>         <span $ch</span> =<span  curl_init();
</span><span 22</span>         <span $options</span> = <span array</span><span (
</span><span 23</span>             CURLOPT_URL => <span sprintf</span>('%s?%s', self::<span $_requestURL</span>, <span $query</span>),
<span 24</span>             CURLOPT_RETURNTRANSFER => <span true</span>,
<span 25</span>             CURLOPT_AUTOREFERER => <span false</span>,
<span 26</span>             CURLOPT_FOLLOWLOCATION => <span false</span>,
<span 27</span>             CURLOPT_HEADER => <span false</span>,
<span 28</span>             CURLOPT_TIMEOUT => 3.0,
<span 29</span> <span         );
</span><span 30</span>         curl_setopt_array(<span $ch</span>, <span $options</span><span );
</span><span 31</span>         <span $content</span> = curl_exec(<span $ch</span><span );
</span><span 32</span>         curl_close(<span $ch</span><span );
</span><span 33</span>         <span return</span> <span $content</span><span ;
</span><span 34</span> <span     }
</span><span 35</span>     
<span 36</span>     <span private</span> <span static</span> <span function</span> parseJSON(<span $json</span><span ){
</span><span 37</span>         <span $O</span> = json_decode (<span $json</span>, <span true</span><span );
</span><span 38</span>         <span if</span>(<span false</span> === <span is_null</span>(<span $O</span><span )){
</span><span 39</span>             <span return</span> <span $O</span><span ;
</span><span 40</span> <span         }
</span><span 41</span>         <span if</span> (<span version_compare</span>(<span PHP_VERSION</span>, '5.3.0', '>='<span )) {
</span><span 42</span>             <span $errorCode</span> =<span  json_last_error();
</span><span 43</span>             <span if</span>(<span isset</span>(self::<span $_JSONParseError</span>[<span $errorCode</span><span ])){
</span><span 44</span>                 <span throw</span> <span new</span> <span Exception</span>(self::<span $_JSONParseError</span>[<span $errorCode</span>], 5<span );
</span><span 45</span> <span             }
</span><span 46</span> <span         }
</span><span 47</span>         <span throw</span> <span new</span> <span Exception</span>('JSON parse error', 5<span );
</span><span 48</span> <span     }
</span><span 49</span>     
<span 50</span>     <span private</span> <span static</span> <span $_JSONParseError</span> = <span array</span><span (
</span><span 51</span>         JSON_ERROR_NONE=>'No error has occurred',   
<span 52</span>         JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',   
<span 53</span>         JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',   
<span 54</span>         JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',   
<span 55</span>         JSON_ERROR_SYNTAX=>'Syntax error',   
<span 56</span>         JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',
<span 57</span> <span     );
</span><span 58</span> }

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TaobaoIPQuery2.Class.php：

<span  1</span> <?<span php
</span><span  2</span> <span Class</span><span  TaobaoIPQuery2{
</span><span  3</span>     <span private</span> <span static</span> <span $_requestURL</span> = 'http://ip.taobao.com/service/getIpInfo.php'<span ;
</span><span  4</span>     <span public</span> <span static</span> <span function</span> getIPInfo(<span $ip</span><span ){
</span><span  5</span>         <span $long</span> = <span ip2long</span>(<span $ip</span><span );
</span><span  6</span>         <span if</span>(<span $long</span> === 0<span ){
</span><span  7</span>             <span throw</span> <span new</span> <span Exception</span>('IP address error', 5<span );
</span><span  8</span> <span         }
</span><span  9</span>         <span $ip</span>=<span long2ip</span>(<span $long</span><span );
</span><span 10</span>         <span $IPInfo</span> = self::queryIPInfo(<span $ip</span><span );
</span><span 11</span>         <span return</span> self::parseJSON(<span $IPInfo</span><span );
</span><span 12</span> <span     }
</span><span 13</span>     
<span 14</span>     <span private</span> <span static</span> <span function</span> queryIPInfo(<span $ip</span><span ){
</span><span 15</span>         <span $query</span> = <span http_build_query</span>(<span array</span>('ip'=><span $ip</span><span ));
</span><span 16</span>         <span $ch</span> =<span  curl_init();
</span><span 17</span>         <span $options</span> = <span array</span><span (
</span><span 18</span>             CURLOPT_URL => <span sprintf</span>('%s?%s', self::<span $_requestURL</span>, <span $query</span>),
<span 19</span>             CURLOPT_RETURNTRANSFER => <span true</span>,
<span 20</span>             CURLOPT_AUTOREFERER => <span false</span>,
<span 21</span>             CURLOPT_FOLLOWLOCATION => <span false</span>,
<span 22</span>             CURLOPT_HEADER => <span false</span>,
<span 23</span>             CURLOPT_TIMEOUT => 3.0,
<span 24</span> <span         );
</span><span 25</span>         curl_setopt_array(<span $ch</span>, <span $options</span><span );
</span><span 26</span>         <span $content</span> = curl_exec(<span $ch</span><span );
</span><span 27</span>         curl_close(<span $ch</span><span );
</span><span 28</span>         <span return</span> <span $content</span><span ;
</span><span 29</span> <span     }
</span><span 30</span>     
<span 31</span>     <span private</span> <span static</span> <span function</span> parseJSON(<span $json</span><span ){
</span><span 32</span>         <span $O</span> = json_decode (<span $json</span>, <span true</span><span );
</span><span 33</span>         <span if</span>(<span false</span> === <span is_null</span>(<span $O</span><span )){
</span><span 34</span>             <span return</span> <span $O</span><span ;
</span><span 35</span> <span         }
</span><span 36</span>         <span if</span> (<span version_compare</span>(<span PHP_VERSION</span>, '5.3.0', '>='<span )) {
</span><span 37</span>             <span $errorCode</span> =<span  json_last_error();
</span><span 38</span>             <span if</span>(<span isset</span>(self::<span $_JSONParseError</span>[<span $errorCode</span><span ])){
</span><span 39</span>                 <span throw</span> <span new</span> <span Exception</span>(self::<span $_JSONParseError</span>[<span $errorCode</span>], 5<span );
</span><span 40</span> <span             }
</span><span 41</span> <span         }
</span><span 42</span>         <span throw</span> <span new</span> <span Exception</span>('JSON parse error', 5<span );
</span><span 43</span> <span     }
</span><span 44</span>     <span /*</span><span  http://www.cnblogs.com/roucheng/ </span><span */</span>
<span 45</span>     <span private</span> <span static</span> <span $_JSONParseError</span> = <span array</span><span (
</span><span 46</span>         JSON_ERROR_NONE=>'No error has occurred',   
<span 47</span>         JSON_ERROR_DEPTH=>'The maximum stack depth has been exceeded',   
<span 48</span>         JSON_ERROR_CTRL_CHAR=>'Control character error, possibly incorrectly encoded',   
<span 49</span>         JSON_ERROR_STATE_MISMATCH=>'Invalid or malformed JSON',   
<span 50</span>         JSON_ERROR_SYNTAX=>'Syntax error',   
<span 51</span>         JSON_ERROR_UTF8=>'Malformed UTF-8 characters, possibly incorrectly encoded',
<span 52</span> <span     );
</span><span 53</span> }

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调用：

<span $ip</span> = <span $_SERVER</span>["REMOTE_ADDR"<span ];
</span><span $ipquery</span> = <span new</span> taobaoIPQuery(<span $ip</span><span );
</span><span $region</span> = <span $ipquery</span>-><span get_region();
</span><span $country</span> = <span $ipquery</span>-><span get_country();
</span><span $city</span> = <span $ipquery</span>->get_city();

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另外新浪也提供接口：http://ipapi.sinaapp.com/