<?php
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
/*** mysql hostname ***/
$hostname = '192.168.1.7';
$database = 'craftedweb';
/*** mysql username ***/
$username = 'user';
/*** mysql password ***/
$password = 'pass';
try {
    $dbh = new PDO("mysql:host=$hostname;dbname=$database", $username, $password);
    /*** echo a message saying we have connected ***/
    echo 'Подключение удалось!';
    }
catch(PDOException $e)
    {
    echo $e->getMessage();
    }
?>

try {
    $dbh = new PDO("mysql:host=$hostname;dbname=$database", $username, $password);
    /*** echo a message saying we have connected ***/
    echo 'Подключение удалось!';
    }
catch(PDOException $e)
    {
    echo $e->getMessage();
    }

try {
    $dbh = new PDO("mysql:host=$hostname;dbname=$database", $username, $password);
    /*** echo a message saying we have connected ***/
    echo 'Подключение удалось!';
    }
catch(PDOException $e)
    {
    echo $e->getMessage();
    }

try{
$db = new \PDO("mysql: host=$host; dbname=$dbname", $user, $password);
} 
catch (\Exception $e) {
var_dump($e->getMessage());
}

try {
    $db = new PDO("mysql:host=$host;dbname=$dbname", $user, $password);
    }
catch(PDOException $e)
    {
    echo $e->getMessage();
    }