“Docker Compose Laravel setup: Nginx shows 404, phpMyAdmin cannot connect to db”

Laravel + Docker Compose on macOS: Nginx (web, ports 8081:80, volumes ./src:/var/www/html, default.conf root /var/www/html/public, fastcgi_pass app:9000) returns 404 on http://localhost:8081, while phpMyAdmin (8080:80) cannot reach MySQL 8 service db (3307:3306) even with PMA_HOST=db (getaddrinfo / mysqli_real_connect errors). How can I diagnose the network/volume/config issue and fix both 404 and DB login?

phpMyAdmin cannot connect to MySQL in a Docker Compose Laravel stack: all containers (app, web, db, phpmyadmin) are Up; Laravel connects using DB_HOST=db; MySQL is exposed as 3307:3306; phpMyAdmin has PMA_HOST=db; yet login fails with getaddrinfo ENOTFOUND db / php_network_getaddresses. Why does service name resolution or port mapping fail, and what exact configuration is required for phpMyAdmin → MySQL 8 in this setup?

Stuck with Nginx 404 and phpMyAdmin DB connection error in Laravel + Docker Compose: route:list shows / and /author/add, Nginx config sets root /var/www/html/public and try_files … /index.php, but visiting http://localhost:8081 or /author/add returns 404; phpMyAdmin at http://localhost:8080 cannot connect to db (MySQL 8). Compose uses ./src:/var/www/html and 8081:80 / 3307:3306. What am I missing?

Docker Compose Laravel environment on macOS: Nginx (8081:80) serves 404 despite correct default.conf (root /var/www/html/public, try_files, fastcgi_pass app:9000), and phpMyAdmin (8080:80) cannot log in to MySQL service db (3307:3306) with PMA_HOST=db set—DNS resolves intermittently, mysqli_real_connect fails. What are the definitive steps to verify container networking, volumes, and phpMyAdmin/MySQL 8 auth so both issues are resolved?