php - Run parallel handler of curl with curl_multi_exec -


why in piece of code need call 2 times curl_multi_exec function.

on first loop i'm executing curl_multi_exec handler run sub handler. when curlm_call_multi_perform different $mrc loop ends.

in second loop, find results curl handlers, , first loop executed again, why?

<?php       {         $mrc = curl_multi_exec($multihandle, $active);     } while ($mrc == curlm_call_multi_perform);      while ($active && $mrc == curlm_ok) {         if (curl_multi_select($multihandle, $timeout) != -1) {             {                 $mrc = curl_multi_exec($multihandle, $active);             } while ($mrc == curlm_call_multi_perform);         }     }  ?>

the code extracted php-doc site

the answers here curl_multi_exec().

it's frustrating php's documentation can useless in aspects ...


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