求大神帮忙看看，php socket的问题

	$appenStr = $buf = '';	$time = time();	for($i=0;$i<100;$i++){		$buf = socket_read($msgsock, 8192);		if(time() - $time > 5){			break;		}		if($buf){			$appenStr .= $buf;		}else{			break;		}	}		echo $appenStr;

$buf = socket_read($msgsock, 8192);	$buf .= socket_read($msgsock, 8192);	$buf .= socket_read($msgsock, 8192);

$appenStr = $out = '';	$start_time = time();	do{		if (false === ($out = socket_read($msgsock, 8192)))		{			echo ("SOCKET_READ_ERROR: " . socket_strerror(socket_last_error($msgsock)));			$str = "";			break;		}		if (time() - $start_time > 1)		{			echo ("SOCKET_READ_ERROR: Timeout!!!");			$str = "";			break;		}		$appenStr .= $out;	} while ($out != "");