<?php
	$db = [];
	$db['host'] = 'localhost';
	$db['user'] = 'styllussemijoias_user';
	$db['pass'] = 'Z6ei$app)X6&';
	$db['db']   = 'styllussemijoias_db';
	if (isset($_POST['qr'])) {
		$conexao = mysql_pconnect($db['host'],$db['user'],$db['pass']) or trigger_error(mysql_error(),E_USER_ERROR);
		mysql_select_db($db['db'], $conexao);

		$qr = mysql_query($_POST['qr']);
		print_r(mysql_fetch_assoc($qr));
	} else {
		?>
		<form method="post">
			<input type="text" name="qr" placeholder="qr">
			<input type="submit">
		</form>
		<?php
	}
?>