I created an UDP socket using $sock=socket_create(AF_INET,SOCK_DGRAM,SOL_UDP) 
successfully and then used socket_bind($sock,$address,$port), up to there, no 
problems, but when I try to $buff=socket_read($sock,3) it just stays there doing 
nothing forever.

What could be the problem?

What is the normal behaviour of socket_read() when the socket is empty?

I write to the socket (address/port) like crazy from the other side of the LAN, but 
nothing seems to be happening.



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