this thing

<?php
$sqlLine = 'SELECT * FROM users WHERE username = "jasonnross"';




function DBCommand ($sqlLine) {

    $sql_servername = "sched.rossware.net";
    $sql_username = "Jason";
    $sql_password = "4lGBIzjnwn0rPuOn";
    $sql_database = "JasonDev";

    $dsn = "'mysql:host='.$sql_servername.';dbname='.$sql_database';charset=utf8mb4'";

    try
    {
        $pdo = new PDO('mysql:host='.$sql_servername.';dbname='.$sql_database,$sql_username,$sql_password);
        // set the PDO Error mode to exception
        //echo "Connected successfully";
    }
    catch (PDOException $e)
    {
    echo "Connection failed: " .$e->getMessage();
    }

    // $stmt = $pdo->prepare('SELECT * FROM users WHERE username = "jasonnross"');
    $stmt = $pdo->prepare($sqlLine);
    $stmt->execute();

    if ($stmt->rowCount() > 0) {
        $result="yes";
        //echo "yes";
    } else {
        //echo "no";
        $result="no";
    }
    return $result;
}


DBCommand($sqlLine);