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Now I want to share how to install php 7.4 on your debian 9 server. Php is an opensource server side programming language for linux, windows and more. So now I want to share how to install it.

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Step #01: Must be server update and upgrade complete.

root@Debian~:# apt update && apt upgrade -y

Update php repo list using below command.

root@Debian~:# apt install apt-transport-https lsb-release ca-certificates -y
root@Debian~:# wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
root@Debian~:# echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list
root@Debian~:# apt update

Step #02: Install php 7.4 version on debian 9.

root@Debian~:# apt install php7.4 -y
root@Debian~:# apt install php7.4 php7.4-cli php7.4-common php7.4-json php7.4-opcache php7.4-mysql php7.4-zip php7.4-fpm php7.4-mbstring apache2 -y
root@Debian~:# systemctl restart apache2

Now test php work is properly. So create php info file.

root@Debian~:# nano /var/www/html/phpinfo.php

Insert below code into phpinfo.php file.

<?php phpinfo() ;?>

Then save it and restart web server apache using below command.

root@Debian~:# systemctl restart apache2

Now browse your server ip address and see is working properly.

http://10.66.11.7/phpinfo.php