Install PHP 8

Install the latest (currently PHP 8.0.*)

If you already have Apache + PHP installed, I would recommend to run a command to disable current version PHP (mine is 7.3) for Apache

sudo a2dismod php7.3

Add the repository

sudo wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/php.list
sudo apt update

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Install/Upgrade Composer on Raspberry OS

To install/upgrade the Composer:

  • make sure you are in the home directory (cd ~)
  • download the installer
  • [optional] verify the installer (the line is commented, check the current hash from the Composer website)
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
# php -r "if (hash_file('sha384', 'composer-setup.php') === '756890a4488ce9024fc62c56153228907f1545c228516cbf63f885e036d37e9a59d27d63f46af1d4d07ee0f76181c7d3') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"

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