i have tried creating a docker container on centos7 but i could access phpmyadmin page but not index.php page

could you see the docker yml and docker file and tell what happened like im running through kali linux to a centos7 docker its been difficult i have been trying since yesterday

the give code is docker-compose.yml

version: "3"
services:
    www:
        build: .
        ports:
            - "8001:80"
        volumes:
            - ./www:/var/www/html/
        links:
            - db
        networks:
            - default
    db:
        image: mysql:8.0.16
        command: ['--character-set-server=utf8mb4', '--collation-server=utf8mb4_unicode_ci','--default-authentication-plugin=mysql_native_password']
        ports:
            - "8002:3306"
        environment:
            MYSQL_DATABASE: myDb
            MYSQL_USER: user
            MYSQL_PASSWORD: test
            MYSQL_ROOT_PASSWORD: test
        volumes:
            - ./dump:/docker-entrypoint-initdb.d
            - persistent:/var/lib/mysql
        networks:
            - default
    phpmyadmin:
        image: phpmyadmin/phpmyadmin:4.9
        links:
            - db:db
        ports:
            - 8000:80
        environment:
            MYSQL_USER: user
            MYSQL_PASSWORD: test
            MYSQL_ROOT_PASSWORD: test
volumes:
    persistent: 

and the dockerfile

FROM php:7.1.19-apache
RUN docker-php-ext-install mysqli mbstring

i dont know what is the issue like when access localhost:8000 on browser im getting forbidden access 403 error

i just need to access index.php when i enter localhost:8000 on browser

please help me out, thank you in advance