encontre este codigo en internet, y quiero obtener su captcha de esta pagina http://www.ruat.gob.bo/vehiculos/consultageneral/InicioBusquedaVehiculo.jsf
su captcha se genera cada ves que refresco la pagina, es posible obtenerlo?
<?php $cookie="cookie.txt"; function open($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2'); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_COOKIE, 1); curl_setopt($ch, CURLOPT_COOKIEJAR,$cookie); curl_setopt($ch, CURLOPT_COOKIEFILE,$cookie); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); curl_setopt ($ch, CURLOPT_REFERER, $url); $result = curl_exec($ch); curl_close($ch); return $result; } function between($string, $start, $end) { $out = explode($start, $string); if(isset($out[1])) { $string = explode($end, $out[1]); echo $string[0]; return $string[0]; } return ''; } function get_captcha() { $url = 'https://academics.vit.ac.in/student/stud_login.asp'; $open = open($url); $code = between($open, '<img src='https://academics.vit.ac.in/student/captcha.asp', '">'); return 'https://academics.vit.ac.in/student/captcha.asp' . $code; } function rahul() { $capth=htmlspecialchars($_POST['code']); echo $capth; $username="xyz"; $password="abc"; $url=url of the form in which you want to submit your data; $cookie="cookie.txt"; $veri=$capth; $com="Login"; $postdata = "regno=".$username."&passwd=".$password."&vrfcd=".$veri."&submit=".$com; $ch = curl_init(); curl_setopt ($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 ($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_COOKIEJAR, $cookie); curl_setopt ($ch, CURLOPT_COOKIEFILE, $cookie); // <-- add this line curl_setopt ($ch, CURLOPT_REFERER, $url); curl_setopt ($ch, CURLOPT_POSTFIELDS, $postdata); curl_setopt ($ch, CURLOPT_POST, 1); $result = curl_exec ($ch); echo $result; $data = curl_exec($ch); }?><html><body><form action="" method="post"><img src="<?php echo get_captcha(); ?>" border="0" /><br /><input type="text" name="code" value="<?= isset($_POST['code']) ? htmlspecialchars($_POST['code']) : '' ?>" /><br /><input type="submit" name="submit" value="submit"/></form><?php if(isset($_POST['submit'])) { rahul(); } ?></body></html>