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Post new topic   Forum Index -> Coding & Scripting Corner View previous topic :: View next topic
Reply to topic   Topic: PHP connect Error 1044
Author
laurbest



Joined: 20 Aug 2021
Posts: 2
Location: Iasi

PostPosted: Sat 21 Aug '21 19:27    Post subject: PHP connect Error 1044 Reply with quote

Hi!I tried to connect a PHP script to a database(called eu).I checked all privileges for user root,the one I use in PHP ,but I get this error:

Code:

Array (
    [0] => Array (
        [errno] => 1044
        [sqlstate] => 42000
        [error] => Access denied for user ''@'localhost' to database 'eu'
        )
    )
1


Code:

?php
/* db.php contains these $dbname = "eu";
$dbusername = "root";
$dbpassword = "";
$dbsrvname = "localhost";*/


include('..\db.php');
$con = mysqli_connect($dbsrvname, $dbusername, $dbpassword, $dbname);
if (!$con){
  echo('Connection ERROR');
  die(print_r(mysqli_error($con)));
}
$query="USE eu";
$stms=mysqli_query($con,$query);
$x=$_POST['username'];
$y=$_POST['password'];

if ($stms === false){
  echo('ERROR during query execution: ');
  die(print_r($con->error_list));
}
$row = mysqli_fetch_array($stms, MYSQLI_ASSOC);
if ($row){
  die('Logged in');
}
else{
  die('Wrong username or password');
}
?>


Mod note: added code tags
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spser



Joined: 29 Aug 2016
Posts: 88

PostPosted: Mon 23 Aug '21 3:11    Post subject: Re: PHP connect Error 1044 Reply with quote

$con = mysqli_connect($dbsrvname, $dbusername, $dbpassword);
try
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6998
Location: Germany, Next to Hamburg

PostPosted: Mon 23 Aug '21 8:58    Post subject: Reply with quote

MySQL Error 1044 is access denied for the user.
Either the user password combination is not correct or the hostname in the MySQL user table is a different one than expected.
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laurbest



Joined: 20 Aug 2021
Posts: 2
Location: Iasi

PostPosted: Tue 24 Aug '21 19:40    Post subject: I looked into user table and it was all fine. Reply with quote

James Blond wrote:
MySQL Error 1044 is access denied for the user.
Either the user password combination is not correct or the hostname in the MySQL user table is a different one than expected.
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mraddi



Joined: 27 Jun 2016
Posts: 133
Location: Schömberg, Baden-Württemberg, Germany

PostPosted: Wed 25 Aug '21 20:39    Post subject: Reply with quote

Good evening,

why is the user's name empty in the error-message?
Code:
Access denied for user ''@'localhost' to database 'eu'

Normally there should be the username you used for trying to get access to the database.
For debugging-purpose try to output $dbusername before you use mysqli_connect - just to be sure that the variable is set correctly. Do the same for the other variables used in mysqli_connect.
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6998
Location: Germany, Next to Hamburg

PostPosted: Thu 26 Aug '21 9:15    Post subject: Re: I looked into user table and it was all fine. Reply with quote

laurbest wrote:
James Blond wrote:
MySQL Error 1044 is access denied for the user.
Either the user password combination is not correct or the hostname in the MySQL user table is a different one than expected.


It might be that the user on MySQL is

user @ localhost or user @ % (wildcard)

e.g.
Code:

MariaDB [mysql]> SELECT user,host FROM user;
+----------+-----------+
| User     | Host      |
+----------+-----------+
| backup   | %         |
| root     | 127.0.0.1 |
| root     | ::1       |
| backup   | localhost |
| pma      | localhost |
| root     | localhost |
+----------+-----------+
7 rows in set (0.001 sec)

MariaDB [mysql]>


And your error message shows that there wasn't a user same set.
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6998
Location: Germany, Next to Hamburg

PostPosted: Thu 26 Aug '21 9:20    Post subject: Reply with quote

Also instead of print_r use var_dump

There is a "1" that might be a boolean true.
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mraddi



Joined: 27 Jun 2016
Posts: 133
Location: Schömberg, Baden-Württemberg, Germany

PostPosted: Thu 26 Aug '21 13:26    Post subject: Reply with quote

James Blond wrote:
There is a "1" that might be a boolean true.

This "1" is the "true"-result of print_r printed by die(...), because print_r was used without the second parameter set to "true"
print_r-documentation: https://www.php.net/manual/de/function.print-r.php

To circumwent this "problem" either add a true as in
Code:
die(print_r(mysqli_error($con), true));

or put the print_r or var_dump before the die():
Code:
var_dump(mysqli_error($con));
die();


But this is not related to the original problem of not being able to access the database.
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