- 
						How does laravel use UrlWindow?
						
 look at the  link description when looking at the paging   the blogger says that what is provided at the bottom of the laravel needs to use. I directly  use UrlWindow;  what  s wrong?   $window = UrlWindow::make ($posts);  
public function fetch()
{
   ... 
- 
						Mysql a table grouped according to two fields to remove weight, is there a SQL boss (I have solved it myself)
						
 demand background 
 A message record table that takes out the message records related to the current user, and then the previous messages of the two same users show only the latest message, and remove the message  repeatedly.
 Datasheet 
 
8,, :1,4,5
... 
- 
						Docker inside the environment, mysql connection to the database when the error: No such file or directory, how to solve?
						:win10
:docker
mysql:5.7
$con = mysqli_connect("127.0.0.1","root","root");
var_dump(mysqli_connect_error());
:string(18) "Connection refused" 
$con2 = mysqli_connect("localhost","root","ro... 
MySQL Query :  SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5 
 MySQL Error : Disk full (/tmp/#sql-temptable-64f5-429f41d-5c1b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") 
 MySQL Errno : 1021 
 Message :  Disk full (/tmp/#sql-temptable-64f5-429f41d-5c1b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") 
Need Help?