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POPHP Socket - send binary data
 

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  1. POPHP Socket - send binary data
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    <p>How to send binary data representing 01 (PHP)?</p> <p>My Server code (sockets TCP, address is only example. I use my server address of course)</p> <pre><code>error_reporting(E_ALL); set_time_limit(0); ignore_user_abort(true); $address = '11.111.111.111'; // example server address $port = 9000; // example port $sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1); socket_bind($sock, $address, $port); socket_listen($sock); $clients = array($sock); while(true) { $read = $clients; if (socket_select($read, $write = NULL, $except = NULL, 0) &lt; 1) { continue; } if (in_array($sock, $read)) { $clients[] = $newsock = socket_accept($sock); $key = array_search($sock, $read); unset($read[$key]); } foreach ($read as $read_sock) { $data = @socket_read($read_sock, 1024); if ($data === false) { // remove client for $clients array $key = array_search($read_sock, $clients); unset($clients[$key]); echo "client disconnected.\n"; // continue to the next client to read from, if any continue; } $data = trim($data); // check if there is any data after trimming off the spaces if (!empty($data)) { // send this to all the clients in the $clients array (except the first one, which is a listening socket) foreach ($clients as $send_sock) { // if its the listening sock or the client that we got the message from, go to the next one in the list if ($send_sock == $sock || $send_sock == $read_sock) { continue; } $fp = fopen('socket_communication.txt', 'a'); fwrite($fp, date("Y-m-d H:i:s")." - DATA ".$data."\n"); fclose($fp); $value = unpack('H*', "1"); $response = base_convert($value[1], 16, 2); socket_write($send_sock, $response, 1); } // end of broadcast foreach } } } echo "Closing sockets..."; socket_close($sock); </code></pre> <p>I would like to server sent binary data (01 or 1). I use unpack function and convert it by base_convert but it doesnt works.</p> <p>This code send response to client</p> <pre><code>$value = unpack('H*', "1"); $response = base_convert($value[1], 16, 2); socket_write($send_sock, $response, 1); </code></pre>
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    1. COWhere exactly is now the problem? in sending/receiving the data or just in decoding/encoding the data?
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    2. COencoding data, i need to send a binary data representing 1
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    3. COMaybe by just using [chr(1)](http://php.net/manual/en/function.chr.php) …?
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      1. POPHP Socket - send binary data
      1. USCBroe
 

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