Слетело подключение к базе данных

function ftranslite($name){
$name=preg_replace("/[\s+\.\,]/","-",$name);
$name=preg_replace("/["\'\!\?\(\)\:\$\%]/","",$name);                
static $trans= array(
'а'=>'a', 'б'=>'b', 'в'=>'v', 'г'=>'g', 'д'=>'d', 'е'=>'e', 'ж'=>'zh', 'з'=>'z',
'и'=>'i', 'й'=>'y', 'к'=>'k', 'л'=>'l', 'м'=>'m', 'н'=>'n', 'о'=>'o', 'п'=>'p',
'р'=>'r', 'с'=>'s', 'т'=>'t', 'у'=>'u', 'ф'=>'f', 'ы'=>'i', 'э'=>'e', 'А'=>'A',
'Б'=>'B', 'В'=>'V', 'Г'=>'G', 'Д'=>'D', 'Е'=>'E', 'Ж'=>'ZH', 'З'=>'Z', 'И'=>'I',
'Й'=>'Y', 'К'=>'K', 'Л'=>'L', 'М'=>'M', 'Н'=>'N', 'О'=>'O', 'П'=>'P', 'Р'=>'R',
'С'=>'S', 'Т'=>'T', 'У'=>'U', 'Ф'=>'F', 'Ы'=>'I', 'Э'=>'E', 'ё'=>"yo", 'х'=>"h",
'ц'=>"ts", 'ч'=>"ch", 'ш'=>"sh", 'щ'=>"shch", 'ъ'=>"", 'ь'=>"", 'ю'=>"yu", 'я'=>"ya",
'Ё'=>"YO", 'Х'=>"H", 'Ц'=>"TS", 'Ч'=>"CH", 'Ш'=>"SH", 'Щ'=>"SHCH", 'Ъ'=>"", 'Ь'=>"",
 'Ю'=>"YU", 'Я'=>"YA");                 
 $strstring = strtr($name, $trans) ;                 
return strtolower($strstring) ;
}

$db = new PDO('mysql:host=localhost;dbname=ХХХ;charset=utf8', 'ХХХ', 'ХХХ');
 
$currentArticleId = intval($_GET['id']);
$sql = "SELECT * FROM articles WHERE id = '$currentArticleId'";
$result = $db->query($sql);
$article = $result->fetch(PDO::FETCH_ASSOC);

$currentArticleId = intval($_GET['id']);

<?php
 
$db = new PDO('mysql:host=localhost;dbname=test;charset=XXX', 'XXX', 'XXX');
 
$id = filter_input(INPUT_GET, 'id', FILTER_DEFAULT, FILTER_REQUIRE_SCALAR);
 
$sth = $db->prepare('SELECT * FROM articles WHERE id = :id');
 
$sth->execute(array(':id' => $id));
 
$article = $sth->fetch(PDO::FETCH_ASSOC);