PHP Sockets - How to detect client disconnection?

From: Date: Sat, 06 Jan 2007 21:11:42 +0000
Subject: PHP Sockets - How to detect client disconnection?
Groups: php.general 
Request: Send a blank email to php-general+get-246692@lists.php.net to get a copy of this message
How do I detect a disconnected client from a socket resource? In an infinite loop, I socket_read() every open resource that passes a socket_select(). As far as I know, the only way to detect if the client disconnected unexpectedly from their socket resource is when socket_read() returns FALSE (which, during my testing, produced the warning: "An established connection was aborted by the software in your host machine."). However, socket_read() doesn't return FALSE on a disconnected client's socket resource until I first attempt to socket_write() to that resource. In brief pseudo code... socket_create(AF_INET, SOCK_STREAM, SOL_TCP) while (TRUE) foreach (resource where (false === socket_select($arrayofresources, NULL, NULL, 0, 0)) if (socket_read() === false) WON'T DETECT DISCONNECT UNTIL I FIRST socket_write() I appreciate any support you offer and thank you for your time. Best regards, -Tony _________________________________________________________________ Type your favorite song.  Get a customized station.  Try MSN Radio powered by Pandora. http://radio.msn.com

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