000webhost database values insert

<?php
$servername = "localhost";
$username = "xxxx";
$password = "xxxx";
$dbname = "xxxx";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $sql = "INSERT INTO data (open, heat, up, down)
    VALUES ('1', '1', '1', '1')";
    // use exec() because no results are returned
    $conn->exec($sql);
    echo "New record created successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

Source: 000webhost.com

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