Hi, I’m a newbie to databases. What I’ve done is: setup PhpMyAdmin Droplet logged onto PhpMyAdmin using ‘admin’ user and a certain password ‘password’, and I created a database called ‘test’ connected using WinSCP & uploaded php file run the php file as follows: <?php$con = mysqli_connect(‘localhost’, ‘admin’, ‘password’, ‘test’) or die("Connection failed: " . mysqli_connect_errno());?> Somehow, now matter what I try, it keeps giving me a connection error.Am I doing something wrong?

DigitalOcean

Featured AI Products
Compute
Build, deploy, and scale cloud compute resources
Containers and Images
Safely store and manage containers and backups
Managed Databases
Fully managed resources running popular database engines
Management and Dev Tools
Control infrastructure and gather insights
Networking
Secure and control traffic to apps
Security
Help protect your account and resources with these security features
Storage
Store and access any amount of data reliably in the cloud
Browse all products
AI/ML
CMS
Data and IoT
Developer Tools
Gaming and Media
Hosting
Security and Networking
Startups and SMBs
Web and App Platforms
See all solutions
Community
Documentation
Developer Tools
Get Involved
Utilities and Help
Become a Partner
Marketplace
Pricing

- Community
- DigitalOcean
- Community
- DigitalOcean

- Community
- DigitalOcean
- Community
- DigitalOcean

Question

Can't connect to mysql server

Posted on September 16, 2020

MySQL

PHP

By thomasjansen65

Hi,

I’m a newbie to databases. What I’ve done is:

setup PhpMyAdmin Droplet
logged onto PhpMyAdmin using ‘admin’ user and a certain password ‘password’, and I created a database called ‘test’
connected using WinSCP & uploaded php file
run the php file as follows:

<?php $con = mysqli_connect(‘localhost’, ‘admin’, ‘password’, ‘test’) or die("Connection failed: " . mysqli_connect_errno()); ?>

Somehow, now matter what I try, it keeps giving me a connection error. Am I doing something wrong?

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Moisey Uretsky

September 16, 2020

MySQL users are identified by a username and host. Additionally you should only be using your MySQL admin account to administer the MySQL server itself but not to access various databases and not to read and write information that are connected to by apps. This is for security.

Since you have created a database already called test you will want to create a new user that will access that database and read/write data to it.

To do that login to mysql as your admin account and create a user with access:

CREATE USER 'testuser'@'localhost' IDENTIFIED BY 'replace-with-desired-password';
GRANT ALL PRIVILEGES ON test.* TO 'testuser'@'localhost';

Here you are creating a new user called testuser which can connect from localhost with the password you specified.

Then you are granting that user privileges to access, read, write, etc to the database test.*. When you write test.* that means you are giving this user access to the database test, and the * means all tables for that database.

You can also find more in depth information about users and permissions here: https://www.digitalocean.com/community/tutorials/how-to-create-a-new-user-and-grant-permissions-in-mysql

The developer cloud

Scale up as you grow — whether you're running one virtual machine or ten thousand.

View all products

Start building today

From GPU-powered inference and Kubernetes to managed databases and storage, get everything you need to build, scale, and deploy intelligent applications.