PHP Concurrent HTTP requests?

I was wondering what the bes开发者_JAVA百科t way to do concurrent HTTP requests in PHP? I have a lot of data to get and i'd rather do multiple requests at once to retrieve it all.

Does anybody know how I can do this? Preferably in an anonymous/callback function mannor...

Thanks,

Tom.

You can use curl_multi, which internally fires off multiple separate requests under a single curl handle.

But otherwise PHP itself not in any way/shape/form "multithreaded" and will not allow things to run in parallel, except via gross hacks (multiple parallel scripts, one script firing up multiple background tasks via exec(), etc...).

You can try either curl_multi() or use a lower level function socket_select()

you can use HttpRequestPool http://www.php.net/manual/de/httprequestpool.construct.php

$multiRequests = array(
  new HttpRequest('http://www.google.com', HttpRequest::METH_GET),
  new HttpRequest('http://www.yahoo.com', HttpRequest::METH_GET)
  new HttpRequest('http://www.bing.com', HttpRequest::METH_GET)
);

$pool = new HttpRequestPool();
foreach ($multiRequests as $request)
{
  $pool->attach($request);
}

$pool->send();

foreach($pool as $request) 
{
  echo $request->getResponseBody();
}

Or if you want you can send you data as json. In php you can defragment it into all the values again. for eg.

xhttp.open("GET", "gotoChatRoomorNot.php?q=[{"+str+"},{"+user1+"},{"+user2"}]", true);

and in php you can follow this to get your data back: How do I extract data from JSON with PHP?

So make a string in json format and send the entire thing through http. I think you can perform the same kind of behaviour with xml, but i am not aware of xml