note 77446 added to function.pack

Hello everybody. Let us supose that some program in PHP needs to communicate some other program using a filesystem pipe. Supposing that the pipe is already present in the filesystem, we need to send this program a message using a very simple protocol, something like this -------------------------------- | ID | Length | Message | -------------------------------- where ID is a numeric identifier, Length is the length of Message and Message contains a string. What is the best way to accomplish this ?. On the other side (the program that is running in background is a Python program that reads a message when available and executes some code). I tried to use the pack function but the Python program seems to get wrong the message. The code for sending a message from PHP : function send_message_to_pipe ($ID, $length, $msg_body) { $pipe = fopen ("../../fifo", "wb"); if ($length == 0) $packed_msg = pack ("ii", $ID, $length); else $packed_msg = pack ("iic*", $ID, strlen ($msg_body), $message); fwrite ($pipe, $packed_msg); fclose ($pipe); } ---- Server IP: 201.216.232.3 Probable Submitter: 201.255.61.128 ---- Manual Page -- http://www.php.net/manual/en/function.pack.php Edit -- https://master.php.net/note/edit/77446 Del: integrated -- https://master.php.net/note/delete/77446/integrated Del: useless -- https://master.php.net/note/delete/77446/useless Del: bad code -- https://master.php.net/note/delete/77446/bad+code Del: spam -- https://master.php.net/note/delete/77446/spam Del: non-english -- https://master.php.net/note/delete/77446/non-english Del: in docs -- https://master.php.net/note/delete/77446/in+docs Del: other reasons-- https://master.php.net/note/delete/77446 Reject -- https://master.php.net/note/reject/77446 Search -- https://master.php.net/manage/user-notes.php