<?php
error_reporting(-1);
ini_set('display_errors', 1);

$dbHost = 'localhost';
$dbUser = 'root';
$dbPassword = 'password';
$dbName= 'testDB';
$dbCharset='utf8';

$dsn = sprintf('mysql:host=%s;dbname=%s;charset=%s',$dbHost,$dbName,$dbCharset);
try{
    $db = new PDO($dsn,$dbUser,$dbPassword);
    $db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
    $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE,PDO::FETCH_OBJ );
}catch (PDOException $e){
    die("Failed to connect to Database");
}


$sql = "SELECT field1,field2 FROM table WHERE something=:something";

$statement = $db->prepare($sql);

$parameters = [':something'=>$_GET['something']];
try{
    $statement->execute($parameters);
}catch (PDOException $e){
    die("Failed to execute SQL");
}


$rows = $statement->fetchAll();

foreach($rows as $row){
    echo $row->field1. ' - '.$row->field2.'<br/>';
}