sending muliple transactions over a single connection with cURL?

[miraclemaker]

I'm using cURL to post data to a server, I retrieve the result of the post using CURLOPT_RETURNTRANSFER. Part of my project requires that I POST quite a large number of transactions to the same server using cURL. Is there a way I can send all the transactions across the same server connection and still retrieve the result, rather than having to open a new transaction each time?

Opening a connection can be quite time consuming and I'm concerned that if this has to be done a lot on one page it could result in page timeouts.

 

[sleipnir214]

To the best of my knowledge, it's one transaction per connection.

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[miraclemaker]

Hmm. Not the answer I wanted, but thanks for the reply.

 

[sleipnir214]

Hmmph. You knew the answer to this question before you asked. You were hoping for a miracle.

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[miraclemaker]

Heh.
I was kind of hoping something like the following would be possible:

curl_setopt($ch, CURLOPT_URL,&quot;<server to post to>&quot;);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_POST, 1);


foreach(item to post)
	{
	curl_setopt($ch, CURLOPT_POSTFIELDS, &quot;<data to post>&quot;);
	$resultxml=curl_exec($ch);
	$lastcurlerror=curl_error($ch);
	
	//process the result
	}
curl_close($ch);

 

[sleipnir214]

That idea might work.

You're invoking curl_exec() multiple times, so you're actually performing multiple transactions using the same settings.

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http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!!

 

[miraclemaker]

I posted the same question on the php/cURL mailing list and recieved a few replies:


libcurl itself supports this kind of operation, but AFAIK the PHP/CURL binding
code does not. People have reported both success and failures after having
tried that stunt.

I hope that one day someone will make sure that the binding supports this.
---------------
I made this work with PHP 4.2 (I think) running with Apache on an NT box, but
I couldn't make it work on PHP4.3x on FreeBSD. ????!!!!
---------------

so it looks like it works for some people and not for others. I guess the only way I'll find out is to try it myself, but it doesn't seem to realiable. Ah well.