Administrator@Asus:/Mnt/C/Users/David/Documents/MySkills/Docker/Docker-WebServers/Lamp$ cat html/index.php <?php $host = "mysqlserver"; $user = "root"; $pass = "testP@sswd"; $db =

"mysqldb";
try {
$conn = new PDO("mysql:host=$host;dbname=$db", $user, $pass);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

echo "Connected successfully";
} catch(PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}
?>administrator@Asus:/mnt/c/Users/david/Documents/MySkills/docker/Docker-WebServers/Lamp$ cat Dockerfile
FROM php:7.4.3-apache

RUN docker-php-ext-install mysqli pdo pdo_mysql
administrator@Asus:/mnt/c/Users/david/Documents/MySkills/docker/Docker-WebServers/Lamp$ cat docker-compose.yaml
version: "3.7"
services:
web-server:
build:
dockerfile: Dockerfile
context: .
restart: always
volumes:
- "./html/:/var/www/html/"
ports:
- "8080:80"
mysql-server:
image: mysql:8.0.19
restart: always
environment:
MYSQL_ROOT_PASSWORD: testP@sswd
TZ: "Asia/Irkutsk"
volumes:
- mysql-data:/var/lib/mysql

phpmyadmin:
image: phpmyadmin/phpmyadmin:5.0.1
restart: always
environment:
PMA_HOST: mysqlserver
PMA_USER: root
PMA_PASSWORD: testP@sswd
ports:
- "5000:80"
volumes:
mysql-data:

$host = "mysqlserver"; PMA_HOST: mysqlserver а у тебя mysql-server:

гдк это