cURL

1. 簡單的爬蟲

　　1. xampp開啓php的cURL -> xampp/php/php.ini 搜索curl去掉分號便可

　　2. cmd D: -> cd xampp -> cd php

　 　　php -f ../htdocs/mirror/curl/curl.php > ../htdocs/mirror/curl/haha.html  (將爬下來的數據保存在haha.html中)

//  ../htdocs/mirror/curl/curl.php
<?php
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://www.baidu.com");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    $output = curl_exec($ch);
        //將輸出文件中百度替換成屌絲
    echo str_replace("百度", "屌絲", $output);
?>

 

2. 訪問WebService

　　http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?op=getWeatherbyCityName

<?php
    $data = 'theCityName=武漢';
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_USERAGENT, 1); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded;
        charset=utf-8", 
        "Content-length:".strlen($data)
        ));

    $rtn = curl_exec($ch);
    if(!curl_errno($ch))
        echo $rtn;
    else
        echo "Curl error ".curl_error($ch);

    curl_close($ch);

?>

　　

 

3. 模擬登錄後下載登錄以後的信息

<?php
    $data = "username=252973202@qq.com&password=這個密碼就不寫出來啦&remember=1";
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://www.imooc.com/user/login");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  //執行以後不直接打印出來
    
    //模擬登錄開始
    date_default_timezone_set('PRC'); //設置Cookie時區(有過時時間)
    //模板 大多數都是如此 
    curl_setopt($ch, CURLOPT_COOKIESESSION, true);
    curl_setopt($ch, CURLOPT_COOKIEFILE, "cookiefile");
    curl_setopt($ch, CURLOPT_COOKIEJAR, "cookiefile");
    curl_setopt($ch, CURLOPT_COOKIE, "session_name()"."=".session_id());

    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_USERAGENT, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); //cURL支持頁面連接跳轉
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("application/x-www-form-urlencoded;
        charset=utf-8", 
        "Content-length:".strlen($data)
        ));

    $rtn = curl_exec($ch);
    //模擬登錄結束

    //登錄成功後獲取登錄以後的信息
    curl_setopt($ch, CURLOPT_URL, "http://www.imooc.com/space/index");
    curl_setopt($ch, CURLOPT_POST, 0);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-type:text/xml"));

    $output = curl_exec($ch);

    curl_close($ch);

    echo $output;

?>