A # in an unquoted .env value can begin a comment and truncate the password. However, 1045 may also result from user@host matching and MySQL grants, not only the password.
SQLSTATE[HY000] [1045] Access denied for user
DB_PASSWORD=Guclu#Sifre2026!
DB_PASSWORD="Guclu#Sifre2026!"
PHPDotenv supports # as a comment marker, so passwords containing special characters should be quoted. MySQL accounts are also authenticated using both username and connecting host; localhost and 127.0.0.1 may use different connection paths.
The parser may truncate the value at #.
DB_PASSWORD=Guclu#Sifre2026!DB_PASSWORD="Guclu#Sifre2026!"If the application expects TCP, localhost may use a socket. Choose the value that matches the server architecture.
DB_HOST=localhostDB_HOST=127.0.0.1The host portion of the MySQL account must match the actual connection source.
'uygulama'@'localhost''uygulama'@'127.0.0.1' veya uygun '%' kaydıDo not expose the password in shell history or support logs.
grep -nE '^(DB_CONNECTION|DB_HOST|DB_PORT|DB_DATABASE|DB_USERNAME)=' .env
grep -n '^DB_PASSWORD=' .env | sed 's/=.*/=***MASKED***/'
Do not place the password on the command line; enter it interactively after -p.
mysql --protocol=TCP -h 127.0.0.1 -P 3306 -u uygulama -p veritabani
Run using an authorized MySQL administrative account.
SELECT User, Host, plugin FROM mysql.user WHERE User='uygulama';
SHOW GRANTS FOR 'uygulama'@'localhost';
Ensures the corrected .env value is loaded by the application.
php artisan optimize:clear
php artisan config:cache
php artisan migrate:status
Create a protected backup of the current .env file.
Wrap DB_PASSWORD in double quotes without changing the actual password.
Validate DB_HOST according to the server socket or TCP architecture.
Test the same user and database using the MySQL CLI.
Check the user@host account and GRANT privileges.
Clear Laravel configuration cache and verify the connection again.
Password, user@host or authentication plugin does not match.
MySQL is not listening or a firewall blocks the port.
The localhost socket path is incorrect or absent.
DB_DATABASE is incorrect or the database does not exist.
No matching error was found.
In Dotenv syntax, # marks a comment. Quoting a value containing it keeps the character as part of the value.
It depends on the local MySQL setup. 127.0.0.1 explicitly uses TCP while localhost may use a socket. Test and choose the one matching your server.
If the issue is only .env parsing, correctly quoting the existing password may fix it. Grants or user@host mismatches require MySQL-side changes.
We implement permanent fixes by reviewing Laravel, PHP-FPM, Nginx, Apache, MySQL, cPanel and Plesk layers together with their logs.