MySQL Error "Can't get hostname for your address" in PHP -

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i having trouble connecting sql database pointing domain. connect.php returns following warning:

warning: mysqli::mysqli() [mysqli.mysqli]: (hy000/1042): can't hostname address

connect.php

<?php     $server = "agenciaeficacia.com.br";     $user = "my-user";     $pass = "my-password";     $db = "my-db";      // cria conexÃo     $conexao = new mysqli($server, $user, $pass, $db);      // checa conexÃo     if ($conexao->connect_error) {         echo "falha ao conectar com o banco de dados.";     }         date_default_timezone_set('america/sao_paulo'); ?>

the weird thing connection works on localhost, not when upload server (unless use localhost instead of domain). have tried skip-name-resolve solution, didn't work.

is there way solve problem?

i had problem time , worked when disabled dns lookup. if option can change my.cnf or my.ini

[mysqld]

skip-name-resolve


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