[PHP] Breaks on socket_read

[René Fournier]

Can anyone suggest why this script (well, part of the script) fails on 
the "while(($bug=socket_read..." line after it successfully loops 
several times? (Of course, it is only after it timesout, but that is 
what I need it to do.)

---CODE----------------------------------
$msg_recv = 3;
$timeout = array('sec' => 5, 'usec' => 0);
// ENTER LOOP

do {
	$data = "";
	socket_set_block($socket);
	socket_set_option($socket,SOL_SOCKET,SO_RCVTIMEO,$timeout);
>>>	while(($buf = socket_read($socket,128,PHP_BINARY_READ)) !== false) 
{  <<<
		$data .= $buf;

---OUTPUT----------------------------------
PHP Warning:  socket_read() unable to read from socket [35]: Resource 
temporarily unavailable in /Users/rene/Sites/gpspolice/titan/cr.php on 
line 65

Warning: socket_read() unable to read from socket [35]: Resource 
temporarily unavailable in /Users/rene/Sites/gpspolice/titan/cr.php on 
line 65
PHP Warning:  socket_read() unable to read from socket [35]: Resource 
temporarily unavailable in /Users/rene/Sites/gpspolice/titan/cr.php on 
line 65

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