我想从页面中提取数据,使用DOMCrawler Symfony 2。这是我想从中获取数据的页面:http://kovv.mavari.be/kalender.aspx如何从站点获取__EVENTVALIDATION和__VIEWSTATE
但是我希望它发布后,当你点击'zoek'(下拉框中没有参数)。这是我想要的页面!起初我有:$html = file_get_contents("http://kovv.mavari.be/kalender.aspx");
。但显然这只会加载没有帖子的第一页。
这是我现在有:
$post = http_build_query(array(
'ctl00_ContentPlaceHolder1_ddlGeslacht' => 'Heren',
'ctl00$ContentPlaceHolder1$ddlReeks' => '',
'ctl00_ContentPlaceHolder1_ddlDatum' => '',
'ctl00$ContentPlaceHolder1$btnZoek:zoek'
));
$options= array('http' => array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded',
'content' => $post
));
$context = stream_context_create($options);
$html = file_get_contents('http://kovv.mavari.be/kalender.aspx', false, $context);
但从my other Stack Overflow topic,我才知道,我也有送__EVENTVALIDATION和__VIEWSTATE为好。但我不知道得到它们。我该如何解决这个问题? (对于在谷歌搜索或使一些关键的话也将是巨大的!)
这是我现在有:
$url = "http://kovv.mavari.be/kalender.aspx";
$regs = array();
$cookies = '../src/VolleyScout/VolleyScoutBundle/Resources/doc/cookie.txt';
// Regular expressions to parse out the special ASP.NET
// values for __VIEWSTATE and __EVENTVALIDATION
$regexViewstate = '/__VIEWSTATE\" value=\"(.*)\"/i';
$regexEventVal = '/__EVENTVALIDATION\" value=\"(.*)\"/i';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
$data=curl_exec($ch);
$viewstate = $this->regexExtract($data,$regexViewstate,$regs,1);
$eventval = $this->regexExtract($data, $regexEventVal,$regs,1);
$postData = '__VIEWSTATE='
. rawurlencode($viewstate)
. '&__EVENTVALIDATION='.rawurlencode($eventval)
. '&ctl00_ContentPlaceHolder1_ddlGeslacht=Heren'
. '&ctl00$ContentPlaceHolder1$ddlReeks'
. '&ctl00_ContentPlaceHolder1_ddlDatum'
. '&ctl00$ContentPlaceHolder1$btnZoek:zoek'
;
curl_setOpt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookies);
curl_setOpt($ch, CURLOPT_POST, FALSE);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookies);
$data = curl_exec($ch);
echo $data;
curl_close($ch);
但我仍然得到页无后,我失去了什么?
有没有办法得到这个?因为我需要一篇文章后的数据。 – nielsv
请参阅http://stackoverflow.com/questions/12786199/access-viewstate-eventvalidation-in-c-sharp – Pawan
有没有办法做到在PHP? – nielsv