How to Read a List From Mysql Using Php

php connect to mysql

MySQL is a highly popular database management system that can power projects of all sizes. Its power to handle huge volumes of data without breaking a sweat is i of its biggest selling points. Connect MySQL with PHP lawmaking, you can make utilize of i of three methodologies.

There are three types of methods in PHP to connect MySQL database through backend:

  • MySQL
  • MySQLi
  • PDO

mysql() is now obsolete because of security issues like SQL injection etc, but the other ii are being actively used.

MySQLi

MySQLi is an API used every bit a connector function to link the backend of the PHP app to the MySQL database. It works just like the previous version, but it is safer and faster, and provides a improve set of functions and extensions. MySQLi was introduced with PHP 5.0.0 and the drivers were installed in 5.3.0. The API was designed to back up MySQL from version iv.ane.13 to newer ones.

PDO

PHP Data Objects (PDO) extension is a Database Abstraction Layer. It is similar an interface for the backend to interact with the MySQL database and make changes without making whatsoever change in the PHP code. It also gives you the freedom to work with multiple databases. The major advantage of using PDO is that your code stays simple and portable.

In this article, I'll discuss how to connect MySQL Database on different servers and I'll also requite you an overview of connecting Database using PDO.

  1. Connect MySQL using Localhost Server
  2. Connect MySQL using Cloudways Server
  3. Connect MySQL using PDO
  4. Connect MySQL using Remote MySQL
  1. Create MySQL Database at the Localhost
    1. Create Database
    2. Create a Folder in htdocs
    3. Create Database Connectedness File In PHP
    4. Create new php file to cheque your database connection
    5. Run it
  2. Create MySQL Database at Cloudways Server
    1. Create Database Connection
    2. MySQLi Procedural Query
    3. Connect MySQL Database with PHP Using PDO
    4. Cheque Connection
  3. Remote MySQL
  4. Peak MySQL Management tools
    1. MySQL Workbench
    2. Navicat For MySQL
    3. MySQL Yog
    4. Cloudways MySQL Database Manager
  5. Conclusion

Finish Wasting Time on Servers

Cloudways handle server management for y'all so you can focus on creating neat apps and keeping your clients happy.

Create MySQL Database at the Localhost

Before yous get-go building PHP connectedness to MySQL database you need to know what PHPMyAdmin is. It'south a control panel from where you lot can manage the database that yous've created. Open up your browser and get to localhost/PHPMyAdmin or click "Admin" in XAMPP UI.

When y'all first installed XAMPP, it only created the username for information technology to be accessed, you lot now have to add a password to information technology by yourself. For this, you accept to get to User business relationship where the user is the same as the ane shown in this film:

change password database

Now click Edit privileges and go to Modify Admin password, type your password in that location and salvage it. Remember this countersign as it will be used to connect to your Database.

change password database

Annotation: It is not necessary to change the countersign to admission databases on the localhost. It is a good practice and that is why we take used a countersign.

Create Database

At present return to the homepage of PHPMyAdmin. Click theNew push button to create a new database.

phpmyadmin

In the new window, proper name your database as per your demand, I am naming it " practice ". Now select Collation as utf8_general_ci, equally we are using it for learning purposes and it will handle all of our queries and data that will exist covered in this tutorial series. Now click on Create and your database will be created.

create database

The newly created database volition be empty now, as there are no tables in it. I will exist roofing that in the upcoming serial where we volition learn how to create tables and insert data in information technology. In this tutorial, we are going to connect this database to localhost using PHP

tables in database

Create a Folder in htdocs

Now, locate the folder where you installed XAMPP and open the htdocs folder (usually c:/xampp). Create a new binder inside c:/xampp/htdocs/ and proper name it "practice" nosotros will place web files in this folder. Why we have created a folder in htdocs? XAMPP uses folders in htdocs to execute and run your PHP sites.

Notation: If you are using WAMP, then add your practice binder in c:/wamp/www folder.

Create Database Connexion File In PHP

Create a new PHP file and name it db_connnection.php and salve it. Why am I creating a separate database connectedness file? Because if y'all have created multiple files in which you desire to insert data or select data from the databases, you don't need to write the code for database connection every fourth dimension.

<?php  function OpenCon()  {  $dbhost = "localhost";  $dbuser = "root";  $dbpass = "1234";  $db = "case";    $conn = new mysqli($dbhost, $dbuser, $dbpass,$db) or die("Connect failed: %southward\n". $conn -> error);     return $conn;  }   function CloseCon($conn)  {  $conn -> shut();  }     ?>

Here is the explanation of the variable that we have used in our db_connection file:

  1. $dbhost will be the host where your server is running information technology is usually localhost.
  2. $dbuser volition be the username i.e. root and $dbpass will be the password which is the same that you used to admission your PHPMyAdmin.
  3. $dbname will be the name of your database which we have created in this tutorial.

Y'all just have to include it by using PHP custom function include (include 'connection.php') on the top of your code and call its function and use information technology. Information technology too helps when you are moving your project location from one PC to another and you accept to change the values on the unmarried file and all the changes will be applied to all the other files automatically.

Create a new PHP file to check your database connection

Create a new PHP file to connect to your database. Name it index.php and add this code in this file.

<?php include 'db_connection.php';  $conn = OpenCon();  echo "Continued Successfully";  CloseCon($conn);  ?>

Run it!

Now open your browser and goto localhost/practice/alphabetize.php and you should see this screen:

connection successfully

Confirmation Message

Congratulations! You've successfully connected your database with your localhost! If yous are non able to meet this screen, and so check if y'all take washed everything right in your db_connection.php file.

Create MySQL Database at Cloudways Server

For the purpose of this tutorial, I presume that you lot have a PHP application installed on a web server. My setup is:

  • PHP 7.3
  • MySQL

I decided to host my PHP application on Cloudways managed servers because I get a highly optimized hosting stack and no server direction hassles. You tin can try out Cloudways for free by signing for an account and so post-obit this elementary GIF for setting upward the server and the PHP application. Cheque out Cloudways hosting plans for AWS, Google Compute Engine, Vultr, Linode and Digital Ocean to detect the right fit for you.

server-launch

After successfully launching a PHP Awarding on Cloudways go in the application tab and check the details of the database and also click on the button to launch database manager .

php connect to mysql

Connect to MySQL Database

To set up a connection to the database use the mysql_connect function. This function returns a pointer (also known as a database handle) to the database connection. This handle volition be used in the code afterwards on. Once you accept the handle, call back to add together your database credentials.

  • Create a new PHP file and name information technology db_connnection.php and save it.

Why am I creating a split database connexion file? Because if you accept created multiple files in which you desire to insert data or select data from the databases, you don't need to write the code for database connection every time. Y'all simply have to include it past using PHP custom function include (include 'connectedness.php') on the pinnacle of your code and phone call its function and use it.

At this bespeak y'all take the choice of either using MySQLi procedural connexion query or PHP PDO based database connection:

MySQLi Procedural Query

<?php  $servername = "localhost";  $username = "username";  $password = "password";  $db = "dbname";    // Create connection  $conn = mysqli_connect($servername, $username, $password,$db);    // Cheque connection  if (!$conn) {     die("Connection failed: " . mysqli_connect_error());  }  echo "Connected successfully";  ?>

Connect MySQL Database with PHP Using PDO

<?php  $servername = "localhost";  $username = "username";  $password = "password";  $db = "dbname";    try {     $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password, $db);     // prepare the PDO error mode to exception     $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);     echo "Connected successfully";     }  catch(PDOException $east)     {     repeat "Connection failed: " . $e->getMessage();     }  ?>

Check Connection

<?php  include 'db_connection.php';     echo "Connected Successfully";  mysqli_close($conn);  ?>        

For PDO Shut the Connectedness like this

$conn = zilch;

php connect to mysql database

Remote MySQL

For Remote PHP MySQL connection Log into the Cloudways Platform with your credentials. Click on "Servers" in the acme carte du jour bar. Then, click on your target server from the list.

  • Adjacent, become to the Security carte option in the left bill of fare, and then click the MySQL tab.
  • Add together the IP address to the "Add IP to Whitelist" text area and click the "Add" button.
  • If you have multiple IP addresses, echo the process.
  • Once yous are done, click the "Save Changes" button to finalize the changes

how to connect php to mysql

After successfully, set the IP Whitelisting set the IP address in connection and run the query.

Height MySQL Direction tools

MySQL Workbench

MySQL Workbench is a visual tool for database designers, developers, and DBAs. MySQL Workbench gives data modeling, SQL advancement, and comprehensive organization devices for server arrangement, customer organisation, reinforcement, and much more than. MySQL Workbench is accessible on Windows, Linux and Mac Os X.

MySQL Workbench is a very popular MySQL database manager for developers. Information technology provides handy administration tools like server configuration, user management, and many others.It is available for MAC Bone, Linux, and Windows operating systems.

Nosotros suggest all those budding developers who want to learn database administration to use it to their advantage. The management features volition help them in mastering database assistants in full.

Pros

  1. Information technology saves SQL statements
  2. Provides offline access to remote DBs
  3. Stores multiple connections in one location
  4. Visual schema and query builder bachelor

Cons

  1. It is more complex as compared to PHPMyAdmin.
  2. Users often report software crashes.

Navicat is a series of graphical database administration and software development. Information technology could be a single application that permits you to associate to PHP MySQL connectedness and MariaDB databases at the same time. Consistent with cloud databases similar Amazon RDS, Amazon Aurora, Oracle Deject, Google Cloud, and Microsoft Azure.

Navicat for MySQL provides all the avant-garde tools that a programmer requires to fully manage his database operations. Its compatibility with cloud databases makes it handy to use while managing a cloud-based application. Some of its main features are:

Pros:

  1. Intuitive, easy-to-use UI.
  2. Provides easy connection to MySQL database via SSH concluding.
  3. Schedule database jobs – backup, restore, run reports, and more.
  4. Import and export data from ODBC, Excel, Admission, DBF, TXT, CSV, XML, JSON.
  5. Visual schema and query builders available.
  6. Uniform with Windows, Linux, and MAC operating systems.
  7. Team collaboration feature available

Cons:

  1. The professional version is expensive
  2. Execution on Linux requires Vino, which slows down the IDE.
  3. Time-consuming process management

MySQL Yog

This MySQL management tool has three packages available i.e Professional, Enterprise, and Pro. You can choose whatever one of them subsequently testing out.

The MySQL administrators tin can hands piece of work with this platform and can handle their database tasks with efficiency. It is available for Windows operating systems merely.

PROS

  1. Shine query designer tool available
  2. Offers advanced features that help in learning database administration.

CONS

  1. The pro version is heavy on pocket
  2. Users often study occasional software crashes
  3. Doesn't support any databases except MySQL
  4. No native back up for Linux and MAC operating systems.
  5. No elevate and drib support between multiple tabs.

Cloudways MySQL Database Managing director

Cloudways MySQL database director is by far one of the handiest and useful MySQL management tools for developers. It is very piece of cake to utilize because of its user-friendly UI and provides all the required MySQL assistants tools a database director should have:

Pros:

  1. Offers user-friendly and customizable UI with advanced features.
  2. Designs the schema tables, constraints, and queries visually.
  3. Easy connection to MySQL database using SSH concluding.

Cons

  1. No drag and drop support bachelor for multiple tabs.
  2. Lack of support for databases other than MariaDB, MySQL.

Q: How do I check if MySQL is running or not?

A: To cheque to see if MySQL is running, provided its installed equally a service you can go to Starting time -> Control Panel -> Administrative Tools -> Services and look for MySQL on that list. Cheque if information technology is running or not.

Q: How practise I observe my localhost port for MySQL?

A: If you are using MySQL Workbench, look in the Session tab in the Information pane on the sidebar. If you are using phpMyAdmin, click on Home, and then Variables on the height menu. Look for the port setting on the page. The set value is your MySQL port number.

Q: What is my localhost MySQL username and password?

A: Check out http://php.net/manual/en/part.mysql-connect.php. $servername = "localhost"; $username = "root"; $password = ""; This would likely to piece of work for new users and exercise not forget to create the database before connecting to information technology.

Q: What is the standard PHP role for connecting to a MySQL database?

A: Ane of the reasons why PHP works so well with MySQL is the mysql_connect office that opens a database connection. This function takes 5 arguments.

Conclusion

A practiced database structure is the courage of any application. Whether it'southward a CMS or an online task tracking platform, you demand a MySQL database(south) to go along track of app and user information and server information to the application processes.

In this tutorial, we have learned ii things:

  • How to create a new database
  • How to connect MySQL database with PHP

Both MySQLi and PDO have their preferences. Even so, before starting off ane should go along in listen that MySQL is only used to connect MySQL with PHP, if you lot need to drift to another database, y'all'll get to alter the whole code. On the other paw, PDO works with 12 diverse databases, which makes the migration much less enervating.

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Inshal Ali

Inshal is a Content Marketer at Cloudways. With background in computer science, skill of content and a whole lot of inventiveness, he helps business reach the sky and get beyond through content that speaks the language of their customers. Apart from work, you volition see him mostly in some online games or on a football field.

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Source: https://www.cloudways.com/blog/connect-mysql-with-php/

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