php - Using cURL - maintain cookies & sessions, etc -

say make request log site, using curl.

$ch = curl_init(); curl_setopt($ch, curlopt_url, $urls["sign_in"]); curl_setopt($ch, curlopt_returntransfer, true); curl_setopt($ch, curlopt_cookiejar, "cj.txt"); curl_setopt($ch, curlopt_cookiefile, "cj.txt"); curl_setopt($ch, curlopt_post, true); curl_setopt($ch, curlopt_postfields, $pdata); curl_setopt($ch, curlopt_followlocation, true); curl_setopt($ch, curlopt_referer, $urls["home"]); curl_exec($ch); curl_close($ch); 

now, make request page. how can keep same sessions & cookies had (in previous code) alive in next request? tried this, not working:

$ch = curl_init(); curl_setopt($ch, curlopt_url, $urls["enter"]); curl_setopt($ch, curlopt_returntransfer, true); curl_setopt($ch, curlopt_cookiejar, "cj.txt"); curl_setopt($ch, curlopt_cookiefile, "cj.txt"); curl_setopt($ch, curlopt_followlocation, true); curl_setopt($ch, curlopt_referer, $urls["home"]); $data = curl_exec($ch); curl_close($ch); 

btw, in same php file.

any ideas? in advance!

it works me.

check have permission cj.txt writeable. or, if cj.txt doesn't exist, make sure have permission create (directory execute permissions, believe).