This question already has an answer here:
SQLSTATE[HY000] [2002] A connection attempt failed.. - When attempting to connect from Local to remote server
(1 answer)
Closed 3 years ago.
I am trying to connect to a remote server database using PHP code (mysqli)
$host = 'myIP:3306';
$user = 'root';
$pass = 'pass';
$conn = mysqli_connect("$host", "$user", "$pass");
//check connection
if (mysqli_connect_errno())
{
echo "Error: " . mysqli_connect_error();
}
I used myIP/phpmyadmin to make a database and i used putty to check if mysql was running correctly. I also checked the default port for mysql on my server, which was the default (3306).
The error given is described as either a connection fail/time-out/no response.
I also tried using PDO instead of mysqli but it gave me the same results. All other examples i could find where about localhosts and the solution given in those posts is using the socketpath to connect (which doesn't seem like a solution for me as it's remote..).
It's a linux server provided by school.
Any ideas? Thanks in advance.
With mysqli_connect(), you can use 6 parameters:
host, username, password, dbname, port, socket
Host and Port are separate.
Try using:
$conn = mysqli_connect("myIP", "$user", "$pass", "dbname", "3306");
Also, the default port is 3306 so you probably do not even have to provide it.
Related
This question already has answers here:
PHP Connection failed: SQLSTATE[HY000] [2002] Connection refused
(10 answers)
Closed 5 years ago.
OK I have researched every step and done as much as I could and still get the following error:
Error!: SQLSTATE[HY000] [2002] No connection could be made because
the target machine actively refused it.
(BTW this solution, PHP Connection failed: SQLSTATE[HY000] [2002] Connection refused, does not relate, my problem refers to a connection to a remote mysql server, not a virtual machine, and changing to port 8888 or port 8889 has no effect on the message..)
Here is what I did:
I have created a remote connection in mysql:
GRANT ALL PRIVILEGES ON fin_sample.* to fin_test#'%' identified by '****';
I have changed bind-address = 0.0.0.0 in /etc/mysql/mysql.conf.d/mysql.cnf
Confirmed I stopped and restarted mysql.
At this point the server should be accepting remote connections. Here is my code:
try {
$user = 'fin_test';
$pass = '****';
// Note "recommended" space after colon..
$dbh = new PDO('mysql: host=67.205.123.123;dbname=fin_test', $user, $pass);
foreach($dbh->query('SELECT * FROM fin_test.progview_sample') as $row) {
print_r($row);
}
$dbh = null;
} catch (PDOException $e) {
print "Error!: " . $e->getMessage() . "<br/>";
die();
}
I am wondering how I debug this, or what is going wrong? I get the same response regardless of what input I use.
Solution:
I was able to solve the below by doing the following:
removing all parameters except for hostname=..
in addition I had a stupid error of .com after the IP address. Warning!! PDO is not going to tell you you are connecting to the wrong place!
making hostname be an IP address
I do feel it's important to understand that you must modify the bind-address and restart mysql for the database you want to call.
I try to connect my android application using JSON Parser to the web hosting. But whenever I try to connect (even just open using url in the browser) I will get the error message.
<?php
$dbHost = 'http://sql4.000webhost.com/localhost';
$dbUser = 'a6410240_cbetTD';
$dbPass = 'xxxxxx';
$dbName = 'a6410240_cbetTD';
$conn = mysql_connect ($dbHost, $dbUser, $dbPass) or die ('MySQL connect failed. ' . mysql_error());
mysql_select_db($dbName,$conn);
?>
This is my database.php file. The full error message is
Warning: mysql_connect() [function.mysql-connect]: Can't connect to MySQL server on 'http' (4) in /home/a6410240/public_html/database.php on line 8.
I have tried change the $conn but still it didn't worked for me.
Thanks
If your database and application is on same server then use "locahost" in $dbhost.
And if your database and application is on different servers then you need to use IP address or hostname in $dbhost and the database user should be added on database server provided with required privileges.
The problem you are having was already mentioned in one of the comments, this one to be precise.
For your solution to work, all you need to do is omit the part http:// at the beginning and probably /localhost at the end.
The host is only the domain you are referring to. In this case sql4.000webhost.com. With /localhost you tried to already connect to a database, although your configured database is supposed to be a6410240_cbetTD.
MySQL use TCP port 3306 by default
($dbport) and hostname or IP address ($dbhost). For LAMP (Linux-Apache-MySQL-php) you can find a lot of tutorials.
Usually MySQL server listens internal port (which can't be reached via Internet) for security purposes.
If you familiar with docker, you can simply download examples of LAMP solutions from hub.docker.com.
there's this server:
http://phpmyadmin.pvdata.fr/index.php ,
I can connect to it knowing the username and password and Server Choice.
Once I connect to it, it shows under MySql the following information: (I'm Translating from French)
Server: sql6 (sql6 via TCP/IP)
Server Version: 5.0.92-87
Protocol Version: 10
Username: pvdata#10.5.1.3
Character for MySql: UTF-8 Unicode (utf8)
So I tried using the following code in order to connect to the Database:
<?php
// Create connection
$username = "pvdata";
$password = "xxxxxxxx";
$hostname = "10.5.1.3";
$dbhandle = mysql_connect($hostname, $username, $password)
or die("Unable to connect to MySQL");
?>
But it didn't work, it's saying: "A connection attempt failed because the connected party did not properly respond after a period of time".
What am I doing wrong?
Go to your phpMyAdmin installation and look for the file config.inc.php. Open that file, and check which hostname / ip is being used for SQL6. That is the IP you should use for your mysql_connect()
This is most likely a firewall issue. Most 3rd party hosts don't allow you to access MySQL from 'the outside'.
You can do this if you manage the MySQL server yourself or if you have a host that doesn't deny you to access the database from another machine, but in regular web hosting, this is not common.
You need to search, google helps a lot, also you need to connect to an ip/domain and port of your MySQL server.
For this, you need to know what is the port of your mysql server.
Look this answer from link
<?php
mysql_connect("mysite.com:3306", "admin", "1admin") or die(mysql_error());
echo "Connected to MySQL<br />";
?>
to check if you have coneccion, try in console:
shell> mysql --host=remote.example.com --port=3306 //3306 is the
defaul port for MySQL
http://dev.mysql.com/doc/refman/5.0/en/connecting.html
I want to ask about how to connect my localhost application (C:xampp/htdocs/myproject) to database at my server host (www.someweb.somedomain)?
Am I possible to do that? If it is, how to connect it at my php config? Right now my config (server.php) is:
<?php
$host = "my web IP public:3306";
$user = "root";
$pass = "";
$db = "dispatcherDB";
$conn = mysql_connect($host, $user, $pass) or die ("Cant connect to mySQL");
mysql_select_db($db);
?>
what I got:
Warning: mysql_connect(): No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\XMS\server.php on line 7
So, what must I filled for $host? I'm trying using website IP, it still can't connect. Maybe there's someone here have experience at this problem?
Sorry for my bad English
If you have cPanel access to the remote server then you need to mention that from which ip addresses it should allow access to MySQL..
In cPanel you will get Remote MySQL under heading Databases:
Clicking Remote MySQL will give you the option to add hosts from where you want to allow connections to your MySQL server:
Also, you can check localhost without specifying port number as value of $host..
Probably Mysql server is not allowed root access from remote servers.
you could check this post
I've made mysql.php file which contain codes to connect to my database.
However, i'm getting this error message over and over again.
Warning: mysql_connect() [function.mysql-connect]: Can't connect to MySQL server on 'localhost' (10061) in C:\CustomerData\webspaces\webspace_00290195\wwwroot\mysql.php on line 7
Warning: mysql_select_db() [function.mysql-select-db]: Can't connect to MySQL server on 'localhost' (10061) in C:\CustomerData\webspaces\webspace_00290195\wwwroot\mysql.php on line 8
Warning: mysql_select_db() [function.mysql-select-db]: A link to the server could not be established in C:\CustomerData\webspaces\webspace_00290195\wwwroot\mysql.php on line 8
Unable to select database
I've checked if my username, host, database, and password were misspelled, but they were all correct.
I've looked around the internet, but couldn't seem to find the right one for my problem.
My mysql.php file contains:
<?php
// Mysql settings
$user = "example_example";
$password = "example";
$database = "example_example";
$host = "localhost";
mysql_connect($host,$user,$password);
mysql_select_db($database) or die( "Unable to select database");
?>
I've changed my user, password and host name to "example".
I just couldn't find the solution for myself, and I need your kind help.
Thank you in advance.
Please try to find out the error by using mysql_error() function as follows :
mysql_connect($host,$user,$password) or die(mysql_error());
mysql_select_db($database) or die(mysql_error());
and then try to find the exact reason for the failure.
Warning: mysql_connect() [function.mysql-connect]: Can't connect to MySQL server on 'localhost' (10061)
here a list of questions you have to do when this error appears:
1.- is mysql running on the server?
1.1.- is mysql running on default port or in a custom port?
1.2 - is mysql accepting connexions (from localhost, from an ip...?
1.3 - your firewall is blocking mysql?
2.- the database exists on the server?
3.- the user:password have access to that database?
3.1- the user:password can log in from localhost, from an ip... from any place that mysql
is accepting?
I think I don't forget anything
Please check first that your mysql server is running properly.
Mysql settings
$user = "example_example";
$password = "example";
$database = "example_example";
$host = "localhost";
$cn=mysql_connect($host,$user,$password);
mysql_select_db($database,$cn);
Please try this it may work
I am not expert of php but this code is working perfectly in my website
if you are getting any error after applying this code then please inform me i will rty to solve the problem.
Thanks
You should provide the connection that need to use from database whle selecting database. Also use single quote instead of double quotes.
<?php
// Mysql settings
$user = 'example_example';
$password = 'example';
$database = 'example_example';
$host = 'localhost';
$link = mysql_connect($host,$user,$password);
mysql_select_db($database,$link) or die( "Unable to select database");
?>
Reference
You have to get the database information first. You posted this problem when you try to connect to your database in your website hosting, right?
So, go to your hosting control panel to get the MySQL database (and take note of where the database is stored on! Sometimes some hosting providers don't use "localhost". Instead, some of them may use 'serverXX.yourhostingprovider.tld' where XX means the server ID), and then change the corresponding variables with the value you've obtained from the hosting control panel.