curl命令

发表于

命令行操作

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#get
curl http://localhost/index.php?a=1&b=2
#post
curl -d "a=1&b=2" http://localhost/index.php

php扩展操作

get请求

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//创建curl资源
$curl = curl_init();
//设定url及相应选项
curl_setopt($curl, CURLOPT_URL, $url);          //设定访问地址
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);  //1 将获取的信息以文件流形式返回 0直接输出
//抓取内容并返回
$contents = curl_exec($curl);
//关闭资源
curl_close($curl);

post请求

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$curl = curl_init();
$post = 'name=lilei&age=18';
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_POST, 1);            //设定为POST请求
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);  //POST数据
$contents = curl_exec($curl);

cookie操作

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//获取cookie
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
$contents = curl_exec($curl);                           //返回抓取的内容
----------------------------------------------------------
//使用已有cookie
$curl = curl_init();
$timeout = 5;
$cookie_file = "./tmp.cookie";
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $timeout);  
curl_setopt($curl, CURLOPT_COOKIEJAR,$cookie_file);     //使用cookie文件
$contents = curl_exec($curl);
-----------------------------------------------------------
//使用已有cookie并存储 （建议直接使用这种写法，以免漏掉某些关键cookie信息）
$curl = curl_init();
$timeout = 5;
$cookie_file = "./tmp.cookie";
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $timeout);  
curl_setopt($curl, CURLOPT_COOKIEJAR,$cookie_file);     //使用cookie文件
curl_setopt($curl, CURLOPT_COOKIEFILE,$cookie_file);     //存储COOKIE  
$contents = curl_exec($curl);

https请求

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$cacert = getcwd() . '/cacert.pem'; //CA根证书  
$SSL = substr($url, 0, 8) == "https://" ? true : false;  
  
$ch = curl_init();  
curl_setopt($ch, CURLOPT_URL, $url);  
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);  
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout-2);  
if ($SSL && $CA) {  
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);   // 只信任CA颁布的证书  
    curl_setopt($ch, CURLOPT_CAINFO, $cacert); // CA根证书（用来验证的网站证书是否是CA颁布）  
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); // 检查证书中是否设置域名，并且是否与提供的主机名匹配  
} else if ($SSL && !$CA) {  
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 信任任何证书  
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1); // 检查证书中是否设置域名  
}  
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:')); //避免data数据过长问题  
curl_setopt($ch, CURLOPT_POST, true);  
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);  
//curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data)); //data with URLEncode  
$ret = curl_exec($ch);  
//var_dump(curl_error($ch));  //查看报错信息  
curl_close($ch);

应用

模拟验证码登陆

原地址

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/**
 * 模拟登录
 */
//初始化变量
$cookie_file = "tmp.cookie";
$login_url = "http://xxx.com/logon.php";
$verify_code_url = "http://xxx.com/verifyCode.php";
echo "正在获取COOKIE...\n";
$curlj = curl_init();
$timeout = 5;
curl_setopt($curl, CURLOPT_URL, $login_url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($curl, CURLOPT_COOKIEJAR,$cookie_file);             //获取COOKIE并存储
$contents = curl_exec($curl);
curl_close($curl);
echo "COOKIE获取完成，正在取验证码...\n";
//取出验证码
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $verify_code_url);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$img = curl_exec($curl);
curl_close($curl);
$fp = fopen("verifyCode.jpg","w");
fwrite($fp,$img);
fclose($fp);
echo "验证码取出完成，正在休眠，20秒内请把验证码填入code.txt并保存\n";
//停止运行20秒
sleep(20);
echo "休眠完成，开始取验证码...\n";
$code = file_get_contents("code.txt");
echo "验证码成功取出：$code\n";
echo "正在准备模拟登录...\n";
$post = "username=maben&pwd=hahahaha&verifycode=$code";
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER,1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
$result=curl_exec($curl);
curl_close($curl);
//这一块根据自己抓包获取到的网站上的数据来做判断
if(substr_count($result,"登录成功")){
 echo "登录成功\n";
}else{
 echo "登录失败\n";
 exit;
}
//OK，开始做你想做的事吧。。。。。

资料

官方文档