php file_get_contents函数轻松采集ip138数据
<?php //全国,判断条件是$REQUEST_URI是否含有html if (!strpos($_SERVER["REQUEST_URI"], ".html")) { $page = "http://qq.ip138.com/weather/"; $html = file_get_contents($page, 'r'); $pattern = "/<B>全国主要城市、县当天和未来五天天气趋势预报在线查询</B>(.*?)<center style=\"padding:3px\">/si"; //正则匹配之间的html preg_match($pattern, $html, $pg); echo ""; //正则替换远程地址为本地地址 $p = preg_replace('/\/weather\/(\w+)\/index.htm/', 'tq.php/$1.html', $pg[1]); echo $p; } //省,判断条件是$REQUEST_URI是否含有? else if (!strpos($_SERVER["REQUEST_URI"], "?")) { //yoyo推荐的使用分割获得数据,这里是获得省份名称 $province = explode("/", $_SERVER["REQUEST_URI"]); $province = explode(".", $province[count($province) - 1]); $province = $province[0]; //被注释掉的是我自己写出来的正则,感觉写的不好,但效果等同上面 //preg_match('/[^/]+[.(html)]$/',$_SERVER["REQUEST_URI"],$pro); //$province=preg_replace('/.html/','',$pro[0]); $page = "http://qq.ip138.com/weather/" . $province . "/index.htm"; //获取html数据之前先尝试打开页面,防止恶意输入地址导致出错 if (!@fopen($page, "r")) { die("对不起,该地址不存在!<a href=javascript教程:history.back(1)>点击这里返回</a>"); exit(0); } $html = file_get_contents($page, 'r'); $pattern = "/五天天气趋势预报</B>(.*?)请输入输入市/si"; preg_match($pattern, $html, $pg); echo ""; //正则替换,获取省份,城市 $p = preg_replace('/\/weather\/(\w+)/(\w+).htm/', '$2.html?pro=$1', $pg[1]); echo $p; } else { //市,通过get传递省份 $pro = $_REQUEST['pro']; $city = explode("/", $_SERVER["REQUEST_URI"]); $city = explode(".", $city[count($city) - 1]); $city = $city[0]; //preg_match('/[^/]+[.(html)]+[?]/',$_SERVER["REQUEST_URI"],$cit); //$city=preg_replace('/.html?/','',$cit[0]); $page = "http://qq.ip138.com/weather/" . $pro . "/" . $city . ".htm"; if (!@fopen($page, "r")) { die("对不起,该地址不存在!<a href=javascript:history.back(1)>点击这里返回</a>"); exit(0); } $html = file_get_contents($page, 'r'); $pattern = "/五天天气趋势预报</B>(.*?)请输入输入市/si"; preg_match($pattern, $html, $pg); echo ""; //获取真实的图片地址 $p = preg_replace('/\/image\//', 'http://qq.ip138.com/image/', $pg[1]); echo $p; }
永久链接:http://www.phprm.com/code/0452bdb41794eab31a0e9349683d88a7.html
转载随意!带上文章地址吧。