fgets() hang up?

When using a persistant connection, why does this code hang up on the fifth loop iteration (the socket connected to only returns four lines, so obviously its not quitting the loop when it should) // defined earlier on in the class: var $socket; // this is set and connected to when the object // is created (pfsockopen / fsockopen ) function readAll() { $returnData = Array(); while ( !feof( $this->socket ) ) { echo "."; flush(); $thisLine = fgets( $this->socket, 128 ); if ( $thisLine != "" ) $returnData[] = $thisLine; else break; } return $returnData; } // The socket is connecting, cause if I loop 4 times specifically, it // works fine.. it gets caught up on the fifth line.. // the echo "." /flush() is simply for me to see where it's getting // caught Thanks! -- Jon