客戶端發(fā)送數(shù)據(jù)過來,發(fā)送3次之后,服務端沒有響應就會重新改變端口再發(fā)送,這個時候給客戶端發(fā)送數(shù)據(jù)怎么指定端口呢
$client = stream_socket_client('udp://ip:端口'); fwrite($client, 數(shù)據(jù));