使用PHP cURL登录到远程站点

我不熟悉使用cURL，很难找到好的资源。 我试图做的是登录到一个远程站点，让curl完成登录表单，然后返回成功的消息

我的代码似乎不起作用，只是试图显示网站的主页

    $username="mylogin@gmail.com"; 
$password="mypassword"; 
$url="http://www.myremotesite.com/index.php?page=login"; 
$cookie="cookie.txt"; 

$postdata = "email=".$username."&password=".$password; 

$ch = curl_init(); 
curl_setopt ($ch, CURLOPT_URL, $url); 
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6"); 
curl_setopt ($ch, CURLOPT_TIMEOUT, 60); 
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 0); 
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie); 
curl_setopt ($ch, CURLOPT_REFERER, $url); 

curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata); 
curl_setopt ($ch, CURLOPT_POST, 1); 
$result = curl_exec ($ch); 

echo $result;  
curl_close($ch);

---

我做错了什么。工作完成后，我想重定向到另一个页面并从我的站点获取内容。

查看登录页面的来源。查找

表单

HTML标记。在该标记中有一些类似于

action=

的内容，将该值用作

$url

，而不是表单本身的url

此外，当您在那里时，请验证输入框的名称是否与您列出的名称相同

例如，基本登录表单类似于：

<form method='post' action='postlogin.php'>
    Email Address: <input type='text' name='email'>
    Password: <input type='password' name='password'>
</form>

验证您在

$postdata

中列出的值：

$postdata = "email=".$username."&password=".$password;

---

它应该可以正常工作。

我有同样的问题，我找到了这个答案

我只是稍微改变了一下（卷曲在最后一行结束）

我想这就是你想要的，对吗

---

---

还有一个有用的相关问题。关于如何在cUrl中保持会话的活动性：

我已经让它保持了一段时间，但后来又重新访问了它。因为这个问题经常被看。这就是我最终使用的对我有用的东西

define("DOC_ROOT","/path/to/html");
//username and password of account
$username = trim($values["email"]);
$password = trim($values["password"]);

//set the directory for the cookie using defined document root var
$path = DOC_ROOT."/ctemp";
//build a unique path with every request to store. the info per user with custom func. I used this function to build unique paths based on member ID, that was for my use case. It can be a regular dir.
//$path = build_unique_path($path); // this was for my use case

//login form action url
$url="https://www.example.com/login/action"; 
$postinfo = "email=".$username."&password=".$password;

$cookie_file_path = $path."/cookie.txt";

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_NOBODY, false);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path);
//set the cookie the site has for certain features, this is optional
curl_setopt($ch, CURLOPT_COOKIE, "cookiename=0");
curl_setopt($ch, CURLOPT_USERAGENT,
    "Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_REFERER, $_SERVER['REQUEST_URI']);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postinfo);
curl_exec($ch);

//page with the content I want to grab
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/page/");
//do stuff with the info with DomDocument() etc
$html = curl_exec($ch);
curl_close($ch);

---

更新：这段代码从来就不是复制粘贴的。这是为了展示我如何在我的特定用例中使用它。您应该根据需要使其适应您的代码。例如目录、变量等

这就是我在ImpressPages中解决此问题的方法：

//initial request with login data

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/login.php');
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/32.0.1700.107 Chrome/32.0.1700.107 Safari/537.36');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, "username=XXXXX&password=XXXXX");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIESESSION, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie-name');  //could be empty, but cause problems on some hosts
curl_setopt($ch, CURLOPT_COOKIEFILE, '/var/www/ip4.x/file/tmp');  //could be empty, but cause problems on some hosts
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

//another request preserving the session

curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/profile');
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, "");
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

---

巴拿马杰克示例对我不起作用-给出致命错误：调用未定义的函数build_unique_path（）。我使用了以下代码-（更简单-我的意见）：

---

$login\u email='alabala@gmail.com';
$login_pass='alabala4807'
$cookie\u file\u path=“/tmp/cookies.txt”
$LOGINURL=”http://alabala.com/index.php?route=account/login"; 
$agent=“诺基亚通讯器WWW-Browser/2.0（Geos 3.0 Nokia-9000i）”

$ch=curl_init（）

$headers[]=“接受：//*”
$headers[]=“连接：保持活动状态”

//所有请求的基本curl选项
curl\u setopt（$ch，CURLOPT\u HTTPHEADER，$headers）
curl_setopt（$ch，CURLOPT_头，0）
curl_setopt（$ch，CURLOPT_SSL_VERIFYHOST，0）
curl\u setopt（$ch，CURLOPT\u SSL\u VERIFYPEER，false）
curl_setopt（$ch，CURLOPT_USERAGENT，$agent）
curl_setopt（$ch，CURLOPT_RETURNTRANSFER，1）
curl_setopt（$ch，CURLOPT_FOLLOWLOCATION，1）
curl\u setopt（$ch，CURLOPT\u COOKIEFILE，$cookie\u file\u path）
curl\u setopt（$ch，CURLOPT\u COOKIEJAR，$cookie\u file\u path）

//设置第一个URL
curl\u setopt（$ch，CURLOPT\u URL，$LOGINURL）

//执行会话以获取cookie和所需的表单输入
$content=curl\u exec（$ch）

//从登录所需的表单中获取隐藏的输入
$fields=getFormFields（$content）
$fields['email']=$login\u email
$fields['password']=$login\u pass

//使用我们从表单中提取的内容设置postfields
$postfields=http\u build\u query（$fields）
//将URL更改为登录URL
curl_setopt（$ch，CURLOPT_URL，$LOGINURL）

curl\u setopt（$ch，CURLOPT\u post，1）
curl_setopt（$ch，CURLOPT_POSTFIELDS，$POSTFIELDS）

//执行登录
$result=curl\u exec（$ch）

打印$result
（“/（]+>）/is“，$form，$matches）；
如果（$elements>0）{
对于（$i=0；$i$el=preg\u replace（'/\s{2，}/'，''.$matches[1][$i]）；
如果（preg\u match（'/name=（？：[“\''.*））/i'，$el，$name））{
$name=$name=$name[1]；
$value=
（'/value=（？：[“\']）？（[^“\'\s]*）/i'，$el，$value））{
$value=$value[1]；
}



$inputs[$name]=$value；
}



返回$inputs；
}

$grab\u url='1http://grab.url/alabala“；

页面包含我想要抓取的内容
curl_setopt（$ch，CURLOPT_URL，$grab_URL）；
使用DomDocument（）等
$html=curl_exec（$ch）；
curl_close（$ch）；

var_dump（$html）
死亡；

你的

$url

应该是gmail登录的，而不是你自己的脚本。那是登录页面。它是登录表单所在的位置。我不想用这个脚本登录gmail。你确保cookie.txt可以用你的脚本写吗？你如何确保给予正确的权限？@pattyd I提供并接受d我的工作解决方案的答案//因为一些站点在第二页重定向并设置cookie，可能需要这样做：curl\u setopt（$ch，CURLOPT\u FOLLOWLOCATION，1）；我如何检查我是否已经登录？（跳过发送登录请求）@用户3383675你是什么意思？使用curl尝试登录到一个页面，检查你是否已登录，然后做一些其他事情？（有一个请求？）我的意思是：while（一些条件）{isLoggedIn（）？doSomething（）：login（）&&doSomething（）}这是每次迭代前登录的必要条件，还是我只能发送一次登录请求，然后在下一次迭代中不登录就可以了？这个答案对我很有效，但有一个例外：在使用POST登录后，您忘记了更改回去获取受保护的文件下载。在某些服务器上（在我的情况下）它可能会阻止您获取该文件。在第二个exec为我修复它之前，简单的

curl\u setopt（$ch，CURLOPT\u POST，0）；

。这很好，谢谢

define("DOC_ROOT","/path/to/html");
//username and password of account
$username = trim($values["email"]);
$password = trim($values["password"]);

//set the directory for the cookie using defined document root var
$path = DOC_ROOT."/ctemp";
//build a unique path with every request to store. the info per user with custom func. I used this function to build unique paths based on member ID, that was for my use case. It can be a regular dir.
//$path = build_unique_path($path); // this was for my use case

//login form action url
$url="https://www.example.com/login/action"; 
$postinfo = "email=".$username."&password=".$password;

$cookie_file_path = $path."/cookie.txt";

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_NOBODY, false);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path);
//set the cookie the site has for certain features, this is optional
curl_setopt($ch, CURLOPT_COOKIE, "cookiename=0");
curl_setopt($ch, CURLOPT_USERAGENT,
    "Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_REFERER, $_SERVER['REQUEST_URI']);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postinfo);
curl_exec($ch);

//page with the content I want to grab
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/page/");
//do stuff with the info with DomDocument() etc
$html = curl_exec($ch);
curl_close($ch);

//initial request with login data

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/login.php');
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/32.0.1700.107 Chrome/32.0.1700.107 Safari/537.36');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, "username=XXXXX&password=XXXXX");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIESESSION, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie-name');  //could be empty, but cause problems on some hosts
curl_setopt($ch, CURLOPT_COOKIEFILE, '/var/www/ip4.x/file/tmp');  //could be empty, but cause problems on some hosts
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

//another request preserving the session

curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/profile');
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, "");
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

// options
$login_email = 'alabala@gmail.com';
$login_pass = 'alabala4807';
$cookie_file_path = "/tmp/cookies.txt";
$LOGINURL = "http://alabala.com/index.php?route=account/login"; 
$agent = "Nokia-Communicator-WWW-Browser/2.0 (Geos 3.0 Nokia-9000i)";

// begin script
$ch = curl_init();

// extra headers
$headers[] = "Accept: */*";
$headers[] = "Connection: Keep-Alive";

// basic curl options for all requests
curl_setopt($ch, CURLOPT_HTTPHEADER,  $headers);
curl_setopt($ch, CURLOPT_HEADER,  0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  
       curl_setopt($ch, CURLOPT_USERAGENT, $agent); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); 
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file_path); 
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path); 

// set first URL
curl_setopt($ch, CURLOPT_URL, $LOGINURL);

// execute session to get cookies and required form inputs
$content = curl_exec($ch); 

// grab the hidden inputs from the form required to login
$fields = getFormFields($content);
$fields['email'] = $login_email;
$fields['password'] = $login_pass;

// set postfields using what we extracted from the form
$POSTFIELDS = http_build_query($fields); 
// change URL to login URL
curl_setopt($ch, CURLOPT_URL, $LOGINURL); 

// set post options
curl_setopt($ch, CURLOPT_POST, 1); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $POSTFIELDS); 

// perform login
$result = curl_exec($ch);  

print $result; 

function getFormFields($data)
{
    if (preg_match('/()/is', $data, $matches)) {
      $inputs = getInputs($matches[1]);

      return $inputs;
    } else {
      die('didnt find login form');
     }
}

function getInputs($form)
{
    $inputs = array();
    $elements = preg_match_all("/(]+>)/is", $form, $matches);
    if ($elements > 0) {
        for($i = 0;$i            $el = preg_replace('/\s{2,}/', ' ', $matches[1][$i]);
            if (preg_match('/name=(?:["\'])?([^"\'\s]*)/i', $el, $name)) {
                $name  = $name[1];

                $value = '';
                if (preg_match('/value=(?:["\'])?([^"\'\s]*)/i', $el, $value)) {
                    $value = $value[1];
                }

                $inputs[$name] = $value;
            }
        }
    }

    return $inputs;
}

$grab_url='http://grab.url/alabala';

//page with the content I want to grab
curl_setopt($ch, CURLOPT_URL, $grab_url);
//do stuff with the info with DomDocument() etc
$html = curl_exec($ch);
curl_close($ch);

var_dump($html); 
die;