Check encoding is UTF8.
protected function checkEncoding() {
try {
if (db_query('SHOW server_encoding')
->fetchField() == 'UTF8') {
$this
->pass(st('Database is encoded in UTF-8'));
}
else {
$replacements = array(
'%encoding' => 'UTF8',
'%driver' => $this
->name(),
'!link' => '<a href="INSTALL.pgsql.txt">INSTALL.pgsql.txt</a>',
);
$text = 'The %driver database must use %encoding encoding to work with Drupal.';
$text .= 'Recreate the database with %encoding encoding. See !link for more details.';
$this
->fail(st($text, $replacements));
}
} catch (\Exception $e) {
$this
->fail(st('Drupal could not determine the encoding of the database was set to UTF-8'));
}
}