php实现多城市切换特效
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2022-07-21 21:21:07
我们先来看下个人常用的代码
php
我们先来看下个人常用的代码
php
<?php include_once('./qqwry.php'); $qqwry=new qqwry; function get_real_ip(){ $ip=false; if(!empty($_server["http_client_ip"])){ $ip = $_server["http_client_ip"]; } if (!empty($_server['http_x_forwarded_for'])) { $ips = explode (", ", $_server['http_x_forwarded_for']); if ($ip) { array_unshift($ips, $ip); $ip = false; } for ($i = 0; $i < count($ips); $i++) { if (!eregi ("^(10|172\.16|192\.168)\.", $ips[$i])) { $ip = $ips[$i]; break; } } } return $ip; } function is_ip($str) { $ip = explode(".", $str); if (count($ip)<4 || count($ip)>4) return 0; foreach($ip as $ip_addr) { if ( !is_numeric($ip_addr) ) return 0; if ( $ip_addr<0 || $ip_addr>255 ) return 0; } return 1; } $ip=$_server['remote_addr']; $iferr=$qqwry->qqwry($ip); $city = $qqwry->country.$qqwry->local; //echo $city;*/ if (strpos($city,'玄武区')!==false){ $city = "玄武区"; } else if(strpos($city,'仙林')!==false){ $city = "仙林"; } else if(strpos($city,'秦淮区')!==false){ $city = "秦淮区"; } else if(strpos($city,'江宁')!==false){ $city = "江宁"; } else if(strpos($city,'鼓楼')!==false){ $city = "鼓楼"; } else{ $city = "栖霞"; } if (isset($_get['chengshi'])) { //ê×ïè¼ì²âêç·ñ»ñµãáë get ´«µýµäêý¾ý setcookie("cookie_city",$_get['chengshi'],time()+3600*24); $city = $_get['chengshi']; } else if (isset($_cookie["cookie_city"])) { //¼ì²âêç·ñ´æôúêç³æcookie $city = $_cookie["cookie_city"]; //ïôê¾cookie±£´æµäêý¾ý } else { setcookie("cookie_city",$city,time()+3600*24); //´¿³õê¼»¯´ë±äá¿ $_cookie["cookie_city"] = $city; } ?>
html
<!doctype html> <html lang="zh-cn"> <head> <meta charset="utf-8"/> <link href="css/css.css" type=text/css rel=stylesheet> <script src="js/jquery-1.4.2.min.js" type=text/javascript></script> <title>城市切换</title> </head> <body> <div class=selcity id=allcity style="display: none"> <div class=area> <table> <tbody> <tr> <td><a class=cur href="show.html">玄武区</a></td> <td><a href="show1.html">仙林</a></td> <td><a href="show2.html">秦淮区</a></td> <td><a href="show3.html">鼓楼</a></td> <td><a href="show4.html">江宁</a></td> <td><a href="show5.html">栖霞区</a></td> </tr> </tbody></table> <div class=none><a id=foldin href="javascript:;">全部</a></div></div></div> <div class=header> <div class=area> <div class=r> <div class="topctiy clear"> <ul> <li class=i1><a href="index.php">全部小区</a></li> <li class=i1> <?php echo $city; ?> </li> <li class=i2 id=changecity>切换城市</li> </ul> </div> </div> </div> </div> <script type=text/javascript> jquery(function(){ $("#changecity").click(function(a){ $("#allcity").slidedown(300); a.stoppropagation(); $(this).blur(); }); $("#allcity").click(function(a){ a.stoppropagation() }); $(document).click(function(a){ a.button!=2 && $("#allcity").slideup(300) }); $("#foldin").click(function(){ $("#allcity").slideup(300) }); }); </script> </body> </html>
另外附上网友的实现方法:
使用方法:解压后qqwry.dat就是我们想要ip地址数据库,我们新建一个ipcity文件夹,将数据库放在下面。qq ip数据库使用非常方便,数据也很齐全,你可以及时关注官方更新以保持数据最新,强力推荐一下:)
接下来,我们在上面的ipcity目录下新建一个ipaddress.php文件,直接复制以下代码进去即可,重要的地方也作了相应注释。b段:
<? /* 函数名称:ipcity 参数说明:$userip——用户ip地址 函数功能:php通过ip地址判断用户所在城市 author:lee contact:xpsem2010@gmail.com */ function ipcity($userip) { //ip数据库路径,这里用的是qq ip数据库 20110405 纯真版 $dat_path = 'qqwry.dat'; //判断ip地址是否有效 if(!ereg("^([0-9]{1,3}.){3}[0-9]{1,3}$", $userip)){ return 'ip address invalid'; } //打开ip数据库 if(!$fd = @fopen($dat_path, 'rb')){ return 'ip data file not exists or access denied'; } //explode函数分解ip地址,运算得出整数形结果 $userip = explode('.', $userip); $useripnum = $userip[0] * 16777216 + $userip[1] * 65536 + $userip[2] * 256 + $userip[3]; //获取ip地址索引开始和结束位置 $databegin = fread($fd, 4); $dataend = fread($fd, 4); $useripbegin = implode('', unpack('l', $databegin)); if($useripbegin < 0) $useripbegin += pow(2, 32); $useripend = implode('', unpack('l', $dataend)); if($useripend < 0) $useripend += pow(2, 32); $useripallnum = ($useripend - $useripbegin) / 7 + 1; $beginnum = 0; $endnum = $useripallnum; //使用二分查找法从索引记录中搜索匹配的ip地址记录 while($userip1num>$useripnum || $userip2num<$useripnum) { $middle= intval(($endnum + $beginnum) / 2); //偏移指针到索引位置读取4个字节 fseek($fd, $useripbegin + 7 * $middle); $useripdata1 = fread($fd, 4); if(strlen($useripdata1) < 4) { fclose($fd); return 'file error'; } //提取出来的数据转换成长整形,如果数据是负数则加上2的32次幂 $userip1num = implode('', unpack('l', $useripdata1)); if($userip1num < 0) $userip1num += pow(2, 32); //提取的长整型数大于我们ip地址则修改结束位置进行下一次循环 if($userip1num > $useripnum) { $endnum = $middle; continue; } //取完上一个索引后取下一个索引 $dataseek = fread($fd, 3); if(strlen($dataseek) < 3) { fclose($fd); return 'file error'; } $dataseek = implode('', unpack('l', $dataseek.chr(0))); fseek($fd, $dataseek); $useripdata2 = fread($fd, 4); if(strlen($useripdata2) < 4) { fclose($fd); return 'file error'; } $userip2num = implode('', unpack('l', $useripdata2)); if($userip2num < 0) $userip2num += pow(2, 32); //找不到ip地址对应城市 if($userip2num < $useripnum) { if($middle == $beginnum) { fclose($fd); return 'no data'; } $beginnum = $middle; } } $useripflag = fread($fd, 1); if($useripflag == chr(1)) { $useripseek = fread($fd, 3); if(strlen($useripseek) < 3) { fclose($fd); return 'system error'; } $useripseek = implode('', unpack('l', $useripseek.chr(0))); fseek($fd, $useripseek); $useripflag = fread($fd, 1); } if($useripflag == chr(2)) { $addrseek = fread($fd, 3); if(strlen($addrseek) < 3) { fclose($fd); return 'system error'; } $useripflag = fread($fd, 1); if($useripflag == chr(2)) { $addrseek2 = fread($fd, 3); if(strlen($addrseek2) < 3) { fclose($fd); return 'system error'; } $addrseek2 = implode('', unpack('l', $addrseek2.chr(0))); fseek($fd, $addrseek2); } else { fseek($fd, -1, seek_cur); } while(($char = fread($fd, 1)) != chr(0)) $useripaddr2 .= $char; $addrseek = implode('', unpack('l', $addrseek.chr(0))); fseek($fd, $addrseek); while(($char = fread($fd, 1)) != chr(0)) $useripaddr1 .= $char; } else { fseek($fd, -1, seek_cur); while(($char = fread($fd, 1)) != chr(0)) $useripaddr1 .= $char; $useripflag = fread($fd, 1); if($useripflag == chr(2)) { $addrseek2 = fread($fd, 3); if(strlen($addrseek2) < 3) { fclose($fd); return 'system error'; } $addrseek2 = implode('', unpack('l', $addrseek2.chr(0))); fseek($fd, $addrseek2); } else { fseek($fd, -1, seek_cur); } while(($char = fread($fd, 1)) != chr(0)){ $useripaddr2 .= $char; } } fclose($fd); //返回ip地址对应的城市结果 if(preg_match('/http/i', $useripaddr2)) { $useripaddr2 = ''; } $useripaddr = "$useripaddr1 $useripaddr2"; $useripaddr = preg_replace('/cz88.net/is', '', $useripaddr); $useripaddr = preg_replace('/^s*/is', '', $useripaddr); $useripaddr = preg_replace('/s*$/is', '', $useripaddr); if(preg_match('/http/i', $useripaddr) || $useripaddr == '') { $useripaddr = 'no data'; } return $useripaddr; } ?>
php根据ip地址实现城市切换或跳转
到这里,其实问题已经很简单了,用简单的js就通通搞定。c段如下:
//根据ip地址跳转指定页面js取得城市 var city='<?echo ipcity($xp_userip);?>'; //根据ip地址所有城市跳转到指定页面 if(city.indexof("上海市")>=0){ window.location.href="http://shanghai.demo.com/"; }
将开头的a段代码和上面的c段代码分别放在b段代码的头和尾,然后我们在需要跳转的页面加入以下代码:
<script src="/ipcity/ipaddress.php" type="text/javascript" language="javascript"></script>
刷新页面,是不是达到预想的效果了呢?
以上就是php获取ip地址、php根据ip地址判断城市以及php根据ip地址实现城市切换或跳转的详细介绍了,事实上,像php中通过ip地址自动切换城市就是这个方法的典型应用。举一反三,我们通过这种方法,也可以实现屏蔽指定ip地址或城市的用户访问,自己研究一下吧,也挺简单的:)