mysqli_connect(): (HY000/2002): No connection could be made because the target machine actively refused it

问题

I know there are many questions like this, but i didn't find any solution in it.

Things i tried:-

checked firewall
restarted my PC and Apache server
restarted MYSQL
checked my code
Tried everything i know and found on internet

here's my code:-

<?php

$dbhost = 'localhost:3360';
$dbuser = 'root';
$dbpass = '';
$db     = 'test_db13';


$conn  = mysqli_connect($dbhost,$dbuser,'',$db);

if(! $conn){
  die('Could not connect connect: ') ;
}

echo 'Successfully Connected';


$sql = 'Connected Successfully';
  $retvalue = mysqli_query($sql);

  if(! $retvalue){
    die('Cannot connect to SQL: ');
  }

echo 'DataBase test_db13 has successfully created';

mysqli_close($conn);

 ?>

I did set the password, but it still is showing me the error.

Here's the firewall picture:-

lastly XAMMP is running here's the proof

回答1:

If you look at your XAMPP Control Panel, it's clearly stated that the port to the MySQL server is 3306 - you provided 3360. The 3306 is default, and thus doesn't need to be specified. Even so, the 5th parameter of mysqli_connect() is the port, which is where it should be specified.

You could just remove the port specification altogether, as you're using the default port, making it

$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$db     = 'test_db13';

References

mysqli_connect()
Standard connection of MySQL

回答2:

You have entered wrong port number 3360 instead of 3306. You dont need to write database port number if you are using daefault (3306 in case of MySQL)

回答3:

In your PHP code you have set the incorrect port, this is what the code should be

<?php

$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$db     = 'test_db13';

The port in your code is set to 3360 when it should be 3306, however as this is the default port, you don't need to specify.

回答4:

In most of cases it is data log problem. Follow the steps.

i) Go to data folder of mysql. For xampp go to C:\xampp\mysql\data.

ii) Look for log file name like ib_logfile0 and ib_logfile1.

iii) Create backup and delete those files.

iv) Restart apache and mysql.

来源：https://stackoverflow.com/questions/39810171/mysqli-connect-hy000-2002-no-connection-could-be-made-because-the-target-m

标签

php

mysqli

xampp