socket_import_stream

Function name: socket_import_stream()

Function description: Convert a stream resource to a Socket resource

Function parameters:

• stream: The return value of the stream resource function to be converted: Returns the Socket resource when successful, and returns false when failure. Function applicable version: PHP 4 >= 4.3.0, PHP 5, PHP 7

Function usage example:

 // 创建一个TCP服务器$server = stream_socket_server("tcp://localhost:8000", $errno, $errstr); if (!$server) { echo "Error creating server: $errstr ($errno)"; exit; } // 将流资源转换为Socket资源$socket = socket_import_stream($server); if (!$socket) { echo "Error converting stream to socket"; exit; } // 使用Socket资源进行操作，如绑定地址和端口if (!socket_bind($socket, "127.0.0.1", 8000)) { echo "Error binding socket"; exit; } // 进一步操作Socket资源，如监听连接if (!socket_listen($socket)) { echo "Error listening on socket"; exit; } // 接受客户端连接$client = socket_accept($socket); if (!$client) { echo "Error accepting client connection"; exit; } // 在Socket资源上发送数据$message = "Hello, client!"; socket_write($client, $message, strlen($message)); // 从Socket资源接收数据$data = socket_read($client, 1024); echo "Received data: $data"; // 关闭Socket资源和流资源socket_close($client); socket_close($socket);

The above example demonstrates how to use the socket_import_stream() function to convert stream resources into Socket resources and operate on Socket resources, including binding addresses and ports, listening for connections, sending and receiving data, etc. Note that this function is available in PHP 4.3.0 and later.