Erreur lancement Appache2 = pb de php7.4 et 8

 sudo apt install php8.1-cli php8.1-common php8.1-imap php8.1-redis php8.1-xml php8.1-zip php8.1-mbstring

  sudo a2dismod php7.4 

(This is php ver. you had previously before upgrade)

  sudo a2enmod php8.1 
  

(This is php ver. you have after upgrade. Please verify the exact version by looking into /etc/apache2/mods-available folder. In my case I could see the latest ver. of php8.1 so did accordingly mentioned in this command)

  systemctl restart apache2
  sudo apachectl configtest

sudo apt update && sudo apt upgrade
sudo apt install apache2 apache2-utils mariadb-server mariadb-client -y
sudo apt install php libapache2-mod-php php-mysql php-common php-cli php-common php-json php-opcache php-readline -y
sudo apt install php-fpm php-cgi php-curl php-gd php-intl php-mbstring php-xml php-zip -y

sudo apt install php7.4 libapache2-mod-php7.4 php7.4-mysql php-common php7.4-cli php7.4-common php7.4-json php7.4-opcache php7.4-readline

sudo apt install phpmyadmin -y 


read -p "votre reponse oui/non " reponse
  if [[ "$reponse" == "oui" ]]
    then 
        wget -O- http://www.webmin.com/jcameron-key.asc | sudo apt-key add -
        echo deb http://download.webmin.com/download/repository sarge contrib >> /etc/apt/sources.list
        sudo apt update
        sudo apt install -y webmin
     fi

 sudo mysql_secure_installation

mariadb -u root -p

 CREATE USER 'NOM'@'localhost' IDENTIFIED BY 'mot_de_passe';
 GRANT ALL ON *.* TO 'NOM'@'localhost' WITH GRANT OPTION;
 FLUSH PRIVILEGES;
 QUIT;

Ce n'est pas obligatoire…

 sudo systemctl enable apache2

 sudo systemctl enable mysql