排名检查1

排名检查1
单线程
<?php
ini_set('max_execution_time', '0');
if (!ini_get('safe_mode')) {
    set_time_limit(0);
}
header('Content-type: text/html; charset=utf-8');

function search($keyword, $url, $ip = '113.102.128.247', $page = 1) {
    $res = '';
    if ($page > 10) {
        $res .= '<tr><td>' . $keyword . '</td><td>0</td><td>10页之外</td></tr>';
        return $res;
    } else {
        $pm = ($page - 1) * 10;
        $rsState = false;
        $enKeyword = urlencode($keyword);
        $firstRow = ($page - 1) * 10;
        $urls = 'https://www.baidu.com/s?ie=utf-8&wd=' . $enKeyword . '&pn=' . $firstRow;
        $curl = curl_init();
        $dir = pathinfo($urls); //以数组的形式返回路径的信息
        $host = $dir['dirname']; //路径
        $ref = $host . '/';
        curl_setopt($curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
        curl_setopt($curl, CURLOPT_URL, $urls); // 要访问的地址    
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 对认证证书来源的检查
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在
        curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转
        curl_setopt($curl, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:' . $ip, 'CLIENT-IP:' . $ip)); //IP 
        if ($ref) {
            curl_setopt($curl, CURLOPT_REFERER, $ref); //带来的Referer
        } else {
            curl_setopt($curl, CURLOPT_AUTOREFERER, 1); // 自动设置Referer
        }
        curl_setopt($curl, CURLOPT_HTTPGET, 1); // 发送一个常规的Post请求
        curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环
        curl_setopt($curl, CURLOPT_HEADER, 0); // 显示返回的Header区域内容
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // 获取的信息以文件流的形式返回
        $contents = curl_exec($curl);
        //print_r(curl_getinfo($curl));
        curl_close($curl);
        $preg = '/<div\s+class=\"f13\"><a\s+target=\"_blank\"\s+href=\"[^>]+\">[\s\S]*?<\/a><\/div>/i';
        preg_match_all($preg, $contents, $rs);
        foreach ($rs[0] as $k => $v) {
            $pm++;
            if (strstr($v, $url)) {
                $rsState = true;
                $res .='<tr><td><a target="_blank" href="http://www.baidu.com/s?wd=' . $enKeyword . '&pn=' . $firstRow . '">' . $keyword . '</a></td><td>' . $pm . '</td><td>第' . $page . '页</td></tr>';
                return $res; //只返回第一个排名数据
            }
        }
        unset($contents);
        if ($rsState === false) {
            $res .= search($keyword, $url, $ip,  ++$page);
        }
        return $res;
    }
}

function getClientIp() {
    if (!empty($_SERVER['HTTP_CLIENT_IP']))
        $ip = $_SERVER['HTTP_CLIENT_IP'];
    else if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    else if (!empty($_SERVER['REMOTE_ADDR']))
        $ip = $_SERVER['REMOTE_ADDR'];
    else
        $ip = 'err';
    return $ip;
}

if (isset($_REQUEST['submit'])) {
    $time = explode(' ', microtime());
    $start = $time[0] + $time[1];
    $url = $_REQUEST['url'];
    $ip = getClientIp(); 
    $res = '';
    $keywords = explode("\r\n", trim($_REQUEST['keyword']));
    foreach ($keywords as $k => $v) {
        if (!empty($v) && $v != ' ' && $v != NULL)
            $res .= search($v, $url,$ip);
    }
    $endtime = explode(' ', microtime());
    $end = $endtime[0] + $endtime[1];
    echo '<table border="1" cellspacing="0"><tr><td>关键词</td><td>排名</td><td>位置</td></tr>';
    echo $res;
    echo '</table><hr>程序运行时间: ' . ($end - $start);
    die();
}
?>
<!DOCTYPE>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>百度关键词排名查询</title>
    </head>
    <body>
        <form action="" method="post">
            <ul style="list-style:none;">
                <li>
                    <span style="vertical-align: top;">关键字：</span><textarea name="keyword" rows="20" cols="40" wrap="hard"></textarea>
                </li>
                <li>
                    <span>url地址：</span><input type="text" name="url" size="40">
                </li>
                <li>
                    <input type="submit" name="submit" value="搜索">
                </li>
            </ul>
        </form>
    </body>
</html>