Install phpenv on macOS with homebrew php packages.

phpenv-macos.sh

#!/usr/bin/env bash
# vim: ai ts=2 sw=2 et sts=2 ft=sh

# Install or re-install phpenv with
# multiple versions of PHP on macOS.
#
# Usage:
#
#   curl -L https://git.io/JvG7i | bash
#

# Bash strict mode.
set -o pipefail
set -o errexit
set -o nounset

# Allow empty globs.
shopt -s nullglob

IFS=$' '

# Check OS.
if [[ "${OSTYPE//[0-9.]/}" != "darwin" ]]; then
  (>&2 echo "Error: This script is for macOS not '${OSTYPE}'.")
  exit 1;
fi

brew_install() {
  # Install homebrew.
  if ! command -v brew 1>/dev/null; then
    /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  fi
}

php_install() {
  local PHP_VER;
  local PHP_EXT;
  
  brew_install
 
  # Install PHP versions.
  for PHP_VER in "7.4" "8.0" "8.1" "8.2" "8.3"; do
    # Do not overwrite existing php install.
    if brew list --versions "php@${PHP_VER}" 1>/dev/null; then
      echo "\x1B[36m\t ℹ️  Skipping installation of PHP ${PHP_VER} because it is already installed\x1B[39m"
      # todo: backup global composer config and update php version.
      continue
    fi

    echo "\x1B[36m\t ℹ️ Installing PHP ${PHP_VER}\x1B[39m"
    brew install "shivammathur/php/php@${PHP_VER}" || true
    echo "date.timezone = 'Europe/Madrid'" > "$(brew --prefix)/etc/php/${PHP_VER}/conf.d/date.ini"

    # Install PHP extensions.
    IFS=$' '
    for PHP_EXT in "opcache" "xdebug" "yaml" "zlib" "zip" "pdo_mysql" "pdo_pgsql" "bcmath"; do
      echo "\x1B[36m\t\t - Installing PHP ${PHP_VER} extension ${PHP_EXT} \x1B[39m"
      brew install "php${PHP_VER/./}-${PHP_EXT}" 2>/dev/null || true
    done;
    # Cleaning up.
    brew unlink "php@${PHP_VER}" || true
  done;
  
  echo "\x1B[36m\t 📌 Now you can proceed to install PHPEnv \x1B[39m"
}

phpenv_install() {
  # Install phpenv.
  export PHPENV_ROOT="${HOME}/.phpenv"

  # shellcheck disable=SC2016
  if ! command -v phpenv 1>/dev/null; then
    echo "\x1B[36m\t ℹ️  Installing PHPEnv \x1B[39m"
    ( curl -fsSL https://raw.githubusercontent.com/phpenv/phpenv-installer/master/bin/phpenv-installer | bash ) || true
    { echo 'export PHPENV_ROOT="${HOME}/.phpenv"'
      echo 'if [[ -d "${PHPENV_ROOT}" ]]; then'
      echo '  export PATH="${PHPENV_ROOT}/bin:${PATH}";'
      echo '  eval "$(phpenv init -)";'
      echo 'fi'
    } >> "${HOME}/.zshrc"

    export PATH="${PHPENV_ROOT}/bin:${PATH}"
    eval "$(phpenv init -)"
  else
    echo "\x1B[36m\t ℹ️  Skipping PHPEnv installation because it is already installed \x1B[39m"
    phpenv update
  fi
  
  phpenv_versions_cleanup
  phpenv_versions_rehash
  
  echo "\x1B[36m\t 📌 Now you are ready to use PHPEnv.\nPlease ensure that you have this entry into .bashrc or .zshrc and that you don't have a symbolic link in /usr/local/bin/php (if so, remove it)\n"
  echo "export PHPENV_ROOT=\"${PHPENV_ROOT}\""
  echo "if [ -d \"\${PHPENV_ROOT}\" ]; then"
  echo "  export PATH=\"\${PHPENV_ROOT}/bin:\${PATH}\""
  echo "  eval \"\$(phpenv init -)\""
  echo "fi"
  
  echo "\x1B[36m\t 💡 To use a specific PHP version for a repository: cd repository_name; phpenv VERSION_NUMBER \x1B[39m"
}

phpenv_versions_cleanup() {
  local _shim_link;
  local _shim_realpath;

  if [[ ! -d "${HOME}/.phpenv/versions" ]]; then
    mkdir -p "${HOME}/.phpenv/versions"
  fi

  for _shim_link in "${HOME}"/.phpenv/versions/[0-9].[0-9]*/; do
    _shim_realpath="$(cd -P "$_shim_link" && pwd)"
    if [[ "$_shim_realpath" == "$(brew --cellar)"* ]]; then
      unlink "$_shim_link" 2>/dev/null || true
    fi
  done
}

phpenv_versions_rehash() {
  local _php_path;
  local _php_full_ver;
  local _php_version;

  if [[ ! -d "${HOME}/.phpenv/versions" ]]; then
    mkdir -p "${HOME}/.phpenv/versions"
  fi

  for _php_path in "$(brew --cellar)"/php*/[0-9].[0-9].*; do
    _php_full_ver="${_php_path##*/}";
    _php_version="${_php_full_ver%.*}";
    unlink "${HOME}/.phpenv/versions/${_php_version}" 2>/dev/null || true
    ln -s "${_php_path}" "${HOME}/.phpenv/versions/${_php_version}" 2>/dev/null || true
  done

  phpenv rehash
}

echo "\x1B[34m ℹ️\tWelcome to the local PHP versions software installation for MacOS\t ℹ️\n \x1B[39m"
echo "\x1B[35m 👉🏻 Choose an option: Install PHP Versions (via brew) or Install and configure PHPEnv?"

all_done=0
while (( !all_done )); do
options=("[P] Install all PHP versions" "[E] Install and configure PHPEnv (after installing all the PHP versions" "[Q] Quit")

  select opt in "${options[@]}"; do

    case $REPLY in
    1|p|P) php_install; all_done=1; break ;;
    2|E|e) phpenv_install; all_done=1; break ;;
    q|3) all_done=1; break ;;
    *) echo "Invalid option" ;;

    esac
  done
done