CURL set CURLOPT_POST perminetelly - php

Question

I'm getting a very strange behavior when I do multiple requests with curl. Here's the function I have:
function http_request($curl, $url, $post = null)
{
echo (isset($post) ? 'POST ' . $url : 'GET ' . $url) . PHP_EOL;
try
{
$cookie_path = tempnam(null, 'b');
curl_setopt_array($curl, array
(
CURLOPT_COOKIEFILE => $cookie_path,
CURLOPT_COOKIEJAR => $cookie_path,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_POST => count($post),
CURLOPT_POSTFIELDS => $post,
CURLOPT_HEADER => true,
CURLOPT_AUTOREFERER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_URL => $url,
CURLOPT_USERAGENT => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0',
CURLOPT_HTTPHEADER => array
(
'Accept-Language: en-US;q=0.6,en;q=0.4',
'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
)
));
return curl_exec($curl);
}
catch(Exception $exception)
{
echo $exception;
}
}
Here's the code I use to call it:
$curl = curl_init();
http_request($curl, "http://host.com/url1");
http_request($curl, "http://host.com/url2", "postdata=123");
http_request($curl, "http://host.com/url3");
http_request($curl, "http://host.com/url4");
curl_close($curl);
This is the output I'm getting:
GET http://host.com/url1
POST http://host.com/url2
GET http://host.com/url3
GET http://host.com/url4
So far so good, but using packet analyzer (wireshark), the output looks like this:
POST http://host.com/url1
Content-Length: 0;
POST http://host.com/url2
Content-Length: 12;
POST http://host.com/url3
Content-Length: 0;
POST http://host.com/url4
Content-Length: 0;
Then I rewrote the code like this:
function http_request($curl, $url, $post = null)
{
echo (isset($post) ? 'POST ' . $url : 'GET ' . $url) . PHP_EOL;
try
{
$cookie_path = tempnam(null, 'b');
curl_setopt_array($curl, array
(
CURLOPT_COOKIEFILE => $cookie_path,
CURLOPT_COOKIEJAR => $cookie_path,
CURLOPT_COOKIESESSION => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HEADER => true,
CURLOPT_AUTOREFERER => true,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_URL => $url,
CURLOPT_USERAGENT => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0',
CURLOPT_HTTPHEADER => array
(
'Accept-Language: en-US;q=0.6,en;q=0.4',
'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
)
));
if($post != null)
{
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
}
else
{
curl_setopt($curl, CURLOPT_POST, false);
curl_setopt($curl, CURLOPT_POSTFIELDS, null);
}
return curl_exec($curl);
}
catch(Exception $exception)
{
echo $exception;
}
}
but still the same thing happens, if I remove this code from the function:
if($post != null)
{
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
}
else
{
curl_setopt($curl, CURLOPT_POST, false);
curl_setopt($curl, CURLOPT_POSTFIELDS, null);
}
In packet analyzer I get:
GET http://host.com/url1
GET http://host.com/url2
GET http://host.com/url3
GET http://host.com/url4
It makes no sense how it gets set to POST on the first request, even my $post argument is not set. Thanks!

Answer 1

I vaguely remember I had the same problem some time ago. Try setting CURLOPT_HTTPGET explicitly as well:
if($post != null)
{
curl_setopt($curl, CURLOPT_HTTPGET, false);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $post);
}
else
{
curl_setopt($curl, CURLOPT_HTTPGET, true);
curl_setopt($curl, CURLOPT_POST, false);
curl_setopt($curl, CURLOPT_POSTFIELDS, null);
}