PHP curl, preserve session

use a few setopts to set the cookie.

Example:

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

I modified nabab's code, tried it and it worked perfectly as I wanted:

    $loginData = array('username'=>'myuser', 'password'=>'mypassword');$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);}

You have to use the cookie. That's how I do (I return an array with html content and the encoding which can be useful for scraping):

$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);if ( $ch = curl_init($url) ){    curl_setopt_array($ch,self::$curl_options);    if ( $cookie )        curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie);        $r = curl_exec($ch);        curl_close($ch);    }}