After using cURL to log into a remote webpage, how can I then access another webpage and return it as a string?
Okay, I'm pretty new to cURL. I've managed to log into a webpage using cURL and sending POST data, but once I'm logged in, I'd like it to load various webpages under the same SESSION
and extract data as a string, so that I can check if the webpage contains开发者_运维知识库 a specific string.
How would I go about doing this?
For example:
It logs into http://example.com/login.php
But after logging on, I need it to visit http://example.com/site.php?page=news
and return the contents of that page as a string.
It generally depends on how the remote site handles state management.
In most cases, this will be via a cookie, so you'll need to instruct curl to keep track of cookies.
Something like:
curl_setopt($curl, CURLOPT_COOKIEJAR, '/tmp/cookies'); //where to write cookies received from server
curl_setopt($curl, CURLOPT_COOKIEFILE, '/tmp/cookies'); //where to read cookies to send in requests.
ought to get you started there.
EDIT Blatant Copy/Paste Example (from here - found with about 20 seconds of googling "php curl login"). This looks to be about right:
<?php
$url ="http://login.yahoo.com/config/login?.src=ym&.intl=us&.partner=&.done=http%3A%2F%2Fmail.yahoo.com%2F";
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt ($ch, CURLOPT_COOKIEJAR, '/temp/cookie.txt');
curl_setopt ($ch, CURLOPT_POSTFIELDS, "login=emailid&passwd=password&&submit=Sign In");
ob_start();
curl_exec ($ch);
ob_end_clean();
curl_close ($ch);
unset($ch);
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_COOKIEFILE, "/temp/cookie.txt");
curl_setopt($ch, CURLOPT_URL,"http://us.f515.mail.yahoo.com/ym/login?");
$result = curl_exec ($ch);
curl_close ($ch);
echo $result;
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