lib.php

<?php
    function getContent() {
        $database = mysqli_connect(
            "localhost", "root",
            "", "module3"
        );

        if (mysqli_connect_errno()) {
            echo "Не подключено!", mysqli_connect_errno(), ": ", mysqli_connect_error();
            exit();
        }

        $query = "SELECT * FROM info";
        $data = mysqli_fetch_all(
            mysqli_query($database, $query),
            MYSQLI_ASSOC
        );

        $result = "";
        for ($i = 0; $i < 1; $i++) {
            $result .= createProduct($data[$i]['name'], $data[$i]['content']);
        }

        return $result;
    }

    function createProduct($name, $content) {
        return "<div class='col-xs-12 col-sm-6 col-md-4'>
                    <div class='thumbnail'>

                        <div class='caption'>
                            <h4>{$name}</h4>
                            <p>{$content}</p>
                        </div>
                    </div>
                </div>";
    }
?>