WordPress theme requires PHP v >=8.1 – How to a dd different PHP version to docker-composer

Adjusting the wordpress image to the below works

wordpress:6.3.1-php8.1-apache

Full docker-compose.yml file

# version: '3.1'

services:

  db:
    image: mysql:8
    container_name: mysql_WP
    restart: always
    command: "--default-authentication-plugin=mysql_native_password"
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: dbname
      MYSQL_USER: user
      MYSQL_PASSWORD: password
    # volumes:
    #    - ./schema:/docker-entrypoint-initdb.d

  phpmyadmin:
    image: phpmyadmin/phpmyadmin
    restart: always
    ports:
      - 8082:80
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORT: password

  wordpress:
    image: wordpress:6.3.1-php8.1-apache
    container_name: WP_name
    restart: always
    volumes:
      - ./wordpress:/var/www/html
      # - ./src:/var/www/html
    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_NAME: dbname
      WORDPRESS_DB_USER: user
      WORDPRESS_DB_PASSWORD: password
      # WORDPRESS_TABLE_PREFIX : ''
    ports:
      - 8081:80