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install php 7.4, mysql, apache, phpmyadmin on ubuntu 18

Being a PHP developer we frequently come across requirements where we need to install xampp or Apache, PHP, Mysql on ubuntu system (whether server or on local machine). It is not very straight forward. As different versions of PHP are released over time so there are different apt PPA (personal package archives) that maintains the php binaries. Follow the steps below to install PHP 7.4 along with MySql, apache and PHPMyAdmin.

step 1: installing php 7.4

For run update command :

sudo apt-get update

Install software-properties-common using apt command so that additional PPA can be added and installed easily

sudo apt -y install software-properties-common

Now add ppa:ondrej/php PPA which has PHP binaries that we are going to install

sudo add-apt-repository ppa:ondrej/php

Now refresh the apt so that it can recognise newly added repository.

sudo apt-get update

Now use apt to install desired php version

sudo apt -y install php7.4

While working with php we need additional packages. We can easily install them one by one or in a single command like:

sudo apt-get install -y php7.4-cli php7.4-json php7.4-common php7.4-mysql php7.4-zip php7.4-gd php7.4-mbstring php7.4-curl php7.4-xml php7.4-bcmath

Step 2: Installing apache

Apache is available in default apt repositories. So we can easily install it with apt install command.

sudo apt install apache2

Here are some useful command to start / stop or restart apache.

service apache2 restart
service apache2 stop
service pache2 start
systemctl start apache2
systemctl stop apache2

To check if PHP 7.4 is working correct with apache, create a file named info.php in following location:

/var/www/html/info.php

Add simple phpinfo() function to it. (you might need to change your html folder permission to add a file to it. Use sudo chmod -R 0777 /var/www/html

<?php
phpinfo()

Then open your web browser and type : localhost/info.php

phpinfo()

step 3: installing mysql

sudo apt install mysql-server
sudo systemctl start mysql.service

For first time installation lets enable security script.

sudo mysql_secure_installation

It will ask questions for enabling security like: password strength, removing test users etc. Answer then accordingly as per your needs.

You will be able to connect through command line using sudo mysql command but not using root password that we just set. This is because authentication method is not setup yet.

Lets set the authentication method for root (this is recommended for local machine setup.). For servers you should create separate users for managing/accessing database.
** ‘password’ is the password that you want to set. please change it accordingly.

sudo mysql
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

Now flush the privileges.

FLUSH PRIVILEGES;

Exit mysql by pressing ctrl+c.

Now you should be able to access it using : mysql -u root -p

You can write a small script to test your connection through php as well.

<?php
$servername = "localhost";
$username = "username";
$password = "password";

// Create connection
$conn = new mysqli($servername, $username, $password);

// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>

step 4: Installing phpmyadmin

PHP myadmin is php based tool which provides a nice UI interface to interact with your mysql database.

sudo apt install phpmyadmin php-mbstring php-gettext
Select Apache2 (using spacebar)

Select apache2 as your server by pressing “spacebar” on keyboard and then press enter.

As we have already installed Mysql, lets select <Yes>

Then enter password for MySQL

Now you should be able to access your phpmyadmin at localhost/phpmyadmin

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