Maison > Article > développement back-end > PHP 根据IP地址获取所在城市 php获取用户ip php ip php获取服务器i
有这样的需求,需要根据用户的IP地址,定位用户所在的城市。
本文记录性文章,无逻辑性。有这样需求的朋友,可以直接拷贝使用。直接上代码,不需赘述。
<code><span><?php </span> header(<span>'Content-Type:text/html;Charset=utf-8'</span>); <span><span>function</span><span>GetIp</span><span>()</span>{</span><span>$realip</span> = <span>''</span>; <span>$unknown</span> = <span>'unknown'</span>; <span>if</span> (<span>isset</span>(<span>$_SERVER</span>)){ <span>if</span>(<span>isset</span>(<span>$_SERVER</span>[<span>'HTTP_X_FORWARDED_FOR'</span>]) && !<span>empty</span>(<span>$_SERVER</span>[<span>'HTTP_X_FORWARDED_FOR'</span>]) && strcasecmp(<span>$_SERVER</span>[<span>'HTTP_X_FORWARDED_FOR'</span>], <span>$unknown</span>)){ <span>$arr</span> = explode(<span>','</span>, <span>$_SERVER</span>[<span>'HTTP_X_FORWARDED_FOR'</span>]); <span>foreach</span>(<span>$arr</span><span>as</span><span>$ip</span>){ <span>$ip</span> = trim(<span>$ip</span>); <span>if</span> (<span>$ip</span> != <span>'unknown'</span>){ <span>$realip</span> = <span>$ip</span>; <span>break</span>; } } }<span>else</span><span>if</span>(<span>isset</span>(<span>$_SERVER</span>[<span>'HTTP_CLIENT_IP'</span>]) && !<span>empty</span>(<span>$_SERVER</span>[<span>'HTTP_CLIENT_IP'</span>]) && strcasecmp(<span>$_SERVER</span>[<span>'HTTP_CLIENT_IP'</span>], <span>$unknown</span>)){ <span>$realip</span> = <span>$_SERVER</span>[<span>'HTTP_CLIENT_IP'</span>]; }<span>else</span><span>if</span>(<span>isset</span>(<span>$_SERVER</span>[<span>'REMOTE_ADDR'</span>]) && !<span>empty</span>(<span>$_SERVER</span>[<span>'REMOTE_ADDR'</span>]) && strcasecmp(<span>$_SERVER</span>[<span>'REMOTE_ADDR'</span>], <span>$unknown</span>)){ <span>$realip</span> = <span>$_SERVER</span>[<span>'REMOTE_ADDR'</span>]; }<span>else</span>{ <span>$realip</span> = <span>$unknown</span>; } }<span>else</span>{ <span>if</span>(getenv(<span>'HTTP_X_FORWARDED_FOR'</span>) && strcasecmp(getenv(<span>'HTTP_X_FORWARDED_FOR'</span>), <span>$unknown</span>)){ <span>$realip</span> = getenv(<span>"HTTP_X_FORWARDED_FOR"</span>); }<span>else</span><span>if</span>(getenv(<span>'HTTP_CLIENT_IP'</span>) && strcasecmp(getenv(<span>'HTTP_CLIENT_IP'</span>), <span>$unknown</span>)){ <span>$realip</span> = getenv(<span>"HTTP_CLIENT_IP"</span>); }<span>else</span><span>if</span>(getenv(<span>'REMOTE_ADDR'</span>) && strcasecmp(getenv(<span>'REMOTE_ADDR'</span>), <span>$unknown</span>)){ <span>$realip</span> = getenv(<span>"REMOTE_ADDR"</span>); }<span>else</span>{ <span>$realip</span> = <span>$unknown</span>; } } <span>$realip</span> = preg_match(<span>"/[\d\.]{7,15}/"</span>, <span>$realip</span>, <span>$matches</span>) ? <span>$matches</span>[<span>0</span>] : <span>$unknown</span>; <span>return</span><span>$realip</span>; } <span><span>function</span><span>GetIpLookup</span><span>(<span>$ip</span> = <span>''</span>)</span>{</span><span>if</span>(<span>empty</span>(<span>$ip</span>)){ <span>$ip</span> = GetIp(); } <span>$res</span> = @file_get_contents(<span>'http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip='</span> . <span>$ip</span>); <span>if</span>(<span>empty</span>(<span>$res</span>)){ <span>return</span><span>false</span>; } <span>$jsonMatches</span> = <span>array</span>(); preg_match(<span>'#\{.+?\}#'</span>, <span>$res</span>, <span>$jsonMatches</span>); <span>if</span>(!<span>isset</span>(<span>$jsonMatches</span>[<span>0</span>])){ <span>return</span><span>false</span>; } <span>$json</span> = json_decode(<span>$jsonMatches</span>[<span>0</span>], <span>true</span>); <span>if</span>(<span>isset</span>(<span>$json</span>[<span>'ret'</span>]) && <span>$json</span>[<span>'ret'</span>] == <span>1</span>){ <span>$json</span>[<span>'ip'</span>] = <span>$ip</span>; <span>unset</span>(<span>$json</span>[<span>'ret'</span>]); }<span>else</span>{ <span>return</span><span>false</span>; } <span>return</span><span>$json</span>; } <span>$ipInfos</span> = GetIpLookup(<span>'123.125.114.144'</span>); <span>//baidu.com IP地址</span> var_dump(<span>$ipInfos</span>);</span></code>
使用了新浪的开放API,执行速度还是非常赞的。 本文来自于 CSDN,转载请标注出处!http://blog.csdn.net/liruxing1715/article/details/28238483
').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i ').text(i)); }; $numbering.fadeIn(1700); }); });以上就介绍了PHP 根据IP地址获取所在城市,包括了ip地址,php方面的内容,希望对PHP教程有兴趣的朋友有所帮助。