curl_multi_exec(): is not a valid cURL handle resource
so if you need those handles, why did you close them?
function addHandle($url, $mh) { $ch = curl_init (); $timeout = 5; curl_setopt ( $ch, CURLOPT_URL, $url ); curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, $timeout ); curl_multi_add_handle ( $mh, $ch );}