note 48813 added to function.curl-multi-exec

Here is a revision of rhondle's example. It uses curl_multi_select() to reduce CPU usage while waiting on the network. It is also includes some error handling and cleanup code. <?php $connomains = array( "http://www.cnn.com/", "http://www.canada.com/", "http://www.yahoo.com/" ); $mh = curl_multi_init(); foreach ($connomains as $i => $url) { $conn[$i] = curl_init($url); curl_setopt($conn[$i], CURLOPT_RETURNTRANSFER, 1); curl_multi_add_handle ($mh,$conn[$i]); } // start performing the request do { $mrc = curl_multi_exec($mh, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); while ($active and $mrc == CURLM_OK) { // wait for network if (curl_multi_select($mh) != -1) { // pull in any new data, or at least handle timeouts do { $mrc = curl_multi_exec($mh, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); } } if ($mrc != CURLM_OK) { print "Curl multi read error $mrc\n"; } // retrieve data foreach ($connomains as $i => $url) { if (($err = curl_error($conn[$i])) == '') { $res[$i]=curl_multi_getcontent($conn[$i]); } else { print "Curl error on handle $i: $err\n"; } curl_multi_remove_handle($mh,$conn[$i]); curl_close($conn[$i]); } curl_multi_close($mh); print_r($res); ?> ---- Manual Page -- http://www.php.net/manual/en/function.curl-multi-exec.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+48813 Delete -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+48813&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+48813&report=yes Search -- http://master.php.net/manage/user-notes.php