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LEARN ABOUT PHP

curl_multi_exec

CURL_MULTI_EXEC(3)							 1							CURL_MULTI_EXEC(3)

curl_multi_exec - Run the sub-connections of the current cURL handle

SYNOPSIS

       int curl_multi_exec (resource  $mh, int	&$still_running)

DESCRIPTION

	Processes each of the handles in the stack. This method can be called whether or not a handle needs to read or write data.

PARAMETERS

	      o $mh
		-A cURL multi handle returned by curl_multi_init(3).

	      o $still_running
		- A reference to a flag to tell whether the operations are still running.

RETURN VALUES

	A cURL code defined in the cURL Predefined Constants.

       Note

	       This  only  returns  errors  regarding the whole multi stack. There might still have occurred problems on individual transfers even
	      when this function returns CURLM_OK.

EXAMPLES

       Example #1

	      curl_multi_exec(3) example

	       This example will create two cURL handles, add them to a multi handle, and then run them in parallel.

	      <?php
	      // create both cURL resources
	      $ch1 = curl_init();
	      $ch2 = curl_init();

	      // set URL and other appropriate options
	      curl_setopt($ch1, CURLOPT_URL, "http://lxr.php.net/");
	      curl_setopt($ch1, CURLOPT_HEADER, 0);
	      curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
	      curl_setopt($ch2, CURLOPT_HEADER, 0);

	      //create the multiple cURL handle
	      $mh = curl_multi_init();

	      //add the two handles
	      curl_multi_add_handle($mh,$ch1);
	      curl_multi_add_handle($mh,$ch2);

	      $active = null;
	      //execute the handles
	      do {
		  $mrc = curl_multi_exec($mh, $active);
	      } while ($mrc == CURLM_CALL_MULTI_PERFORM);

	      while ($active && $mrc == CURLM_OK) {
		  if (curl_multi_select($mh) != -1) {
		      do {
			  $mrc = curl_multi_exec($mh, $active);
		      } while ($mrc == CURLM_CALL_MULTI_PERFORM);
		  }
	      }

	      //close the handles
	      curl_multi_remove_handle($mh, $ch1);
	      curl_multi_remove_handle($mh, $ch2);
	      curl_multi_close($mh);

	      ?>

SEE ALSO

       curl_multi_init(3), curl_multi_select(3), curl_exec(3).

PHP Documentation Group 													CURL_MULTI_EXEC(3)

Shell Programming and Scripting