Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'dbuser'#'localhost' (using password: YES) - pdo

Question

Most answers were that it would be a right issue. But I assume not in this case, because mysql-connection still worked.
I am trying to connect to a mariadb10, which was on a server in my network
I am trying to connect from my localhost.
If I try in my terminal:
myuser#mylocalComputer ~ $ mysql -h myserver -P 3307 -u mydbuser -pmyconfidentalpassword
everything works fine!!
But If I try to connect by php scrypt by pdo I get the error:
<?php
$dsn = 'mysql: host=myserver:3307;dbname=mydbname';
$username = 'mydbuser';
$password = 'myconfidentalpassword';
$options = array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8',
);
$dbh = new PDO($dsn, $username, $password, $options);
if(! $dbh ) {
die('Could not connect: ' . mysql_error());
}
$sql = 'select * from foo;';
$retval = mysql_query( $sql, $conn );
if(! $retval ) {
die('Could not select data: ' . mysql_error());
}
echo "Synced data successfully\n";
mysql_close($conn);
?>
The Error was:
PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access
denied for user 'mydbuser'#'localhost' (using password: YES) in
/home/myuser/Projekte/Hibiscus_extend/Hib_Nightly_sync.php:8
Stack trace:
/home/myuser/Projekte/Hibiscus_extend/Hib_Nightly_sync.php(8):
PDO->__construct('mysql: host=myse...', 'mydbuser',
'myconfidentalpassword', Array) {main} thrown in
/home/myuser/Projekte/Hibiscus_extend/Hib_Nightly_sync.php on line 8
What did I do wrong, and where?

Answer 1

Oh Oh Oh!
I found the solution!
The reason for the connection problem were just the empty spaces in $dsn
Wrong:
$dsn = 'mysql: host=myserver:3307;dbname=mydbname';
works fine
$dsn = 'mysql:host=myserver:3307;dbname=mydbname';