PHP curl，保留会话

我正在制作一个应用程序，它可以从网站上抓取数据，根据需要对其进行格式化，并将其显示给用户。现在，该站点不允许跨站点脚本请求，所以我使用PHP的curl来检索页面

• 有了浏览器，网站在你第一次访问时会给你一个cookie，要求你登录，然后在后续请求时会给你实际请求的页面

• 有了PHP的curl，网站只会给我一个页面，让我登录。我想，给我的PHP服务器一个cookie

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如何保存此cookie并在后续请求时显示它？

您必须使用cookie。我就是这样做的（我返回一个包含html内容和编码的数组，这对抓取很有用）：

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使用一些setopts设置cookie

例如：

$ch=curl_init();
curl_setopt($ch, CURLOPT_COOKIEFILE, "c:/cookies/cookie.txt");
curl_setopt($ch, CURLOPT_COOKIEJAR, "-");

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我修改了nabab的代码，并进行了尝试，它完全符合我的要求：

    $loginData = array('username'=>'myuser', 'password'=>'mypassword');
$postData = array('url'=>'http://stackoverflow.com');
$loginURL = "http://stackoverflow.com/login.php";
 $addURL = "http://stackoverflow.com/addUrl.php";

$curl_options = array(
    CURLOPT_RETURNTRANSFER => true,     /* return web page */
    CURLOPT_HEADER         => false,    /* don't return headers */
    CURLOPT_FOLLOWLOCATION => true,     /* follow redirects */
    CURLOPT_ENCODING       => "",       /* handle all encodings */
    CURLOPT_AUTOREFERER    => true,     /* set referer on redirect */
    CURLOPT_CONNECTTIMEOUT => 120,      /* timeout on connect */
    CURLOPT_TIMEOUT        => 120,      /* timeout on response */
    CURLOPT_MAXREDIRS      => 10,       /* stop after 10 redirects */
    CURLOPT_SSL_VERIFYHOST => 0,
    CURLOPT_SSL_VERIFYPEER => 0
);

$cookie = "cookie.txt";
if ( $ch = curl_init() )
{
    curl_setopt_array($ch,$curl_options);
    if ( $cookie )
    {
        curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_URL, $loginURL);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($loginData) );
        $r = curl_exec($ch);
        curl_setopt($ch, CURLOPT_URL, $addURL);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postData) );
        $r = curl_exec($ch);

    }
     curl_close($ch);
}

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添加

curl_setopt（$ch，CURLOPT_COOKIEFILE，'COOKIEFILE.txt'）；curl_setopt（$ch，CURLOPT_COOKIEJAR，'cookiefile.txt'）以及验证后的所有请求中的代码>。您能否从示例中删去要点，只保留相关部分？
    $loginData = array('username'=>'myuser', 'password'=>'mypassword');
$postData = array('url'=>'http://stackoverflow.com');
$loginURL = "http://stackoverflow.com/login.php";
 $addURL = "http://stackoverflow.com/addUrl.php";

$curl_options = array(
    CURLOPT_RETURNTRANSFER => true,     /* return web page */
    CURLOPT_HEADER         => false,    /* don't return headers */
    CURLOPT_FOLLOWLOCATION => true,     /* follow redirects */
    CURLOPT_ENCODING       => "",       /* handle all encodings */
    CURLOPT_AUTOREFERER    => true,     /* set referer on redirect */
    CURLOPT_CONNECTTIMEOUT => 120,      /* timeout on connect */
    CURLOPT_TIMEOUT        => 120,      /* timeout on response */
    CURLOPT_MAXREDIRS      => 10,       /* stop after 10 redirects */
    CURLOPT_SSL_VERIFYHOST => 0,
    CURLOPT_SSL_VERIFYPEER => 0
);

$cookie = "cookie.txt";
if ( $ch = curl_init() )
{
    curl_setopt_array($ch,$curl_options);
    if ( $cookie )
    {
        curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_URL, $loginURL);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($loginData) );
        $r = curl_exec($ch);
        curl_setopt($ch, CURLOPT_URL, $addURL);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postData) );
        $r = curl_exec($ch);

    }
     curl_close($ch);
}