TYPO3 Core

TYPO3_DB_PORT=3306 \
TYPO3_DB_USERNAME=db \
TYPO3_DB_HOST=db \
TYPO3_DB_DBNAME=db \
TYPO3_DB_PASSWORD=db \
TYPO3_DB_DRIVER=mysqli \
TYPO3_SERVER_TYPE=other \
TYPO3_SETUP_ADMIN_EMAIL=admin@example.com \
TYPO3_SETUP_ADMIN_USERNAME=admin \
TYPO3_SETUP_ADMIN_PASSWORD='Pa$$w0rd' \
TYPO3_SETUP_CREATE_SITE="${DDEV_PRIMARY_URL}/" \
TYPO3_PROJECT_NAME="Test Install" \
vendor/bin/typo3 setup --force
Enter the database "port" [default: 3306] ? 3306

Uncaught TYPO3 Exception mysqli::real_connect(): Argument #5 ($port) must be of type ?int, string given
thrown in file /var/www/html/.build/v13/vendor/doctrine/dbal/src/Driver/Mysqli/Driver.php
in line 44