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编写socket
$socket = @socket_create_listen("55555") or die("Failed to create socket !\n"); while(true){ $client = socket_accept($socket); socket_write($client,"欢迎"); while(true){ $input = trim(socket_read($client,256)); if($input == ‘!exit‘) break; if($input == ‘!die‘){ socket_close($client); break 2; } $output = strtoupper($input).‘\n‘; socket_write($client,$output); echo $input.‘\n‘; } socket_close($client); } socket_close($socket);
OSI七层
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原文地址:http://www.cnblogs.com/xueyuwyz/p/4435105.html