The following code shows how to query all rows from the authors table using PDO

pdoqueryphp

<?php

$pdo = require 'connect.php';

$sql = 'SELECT author_id, name 
		FROM authors';

$statement = $pdo->query($sql);

// get all authors
$authors = $statement->fetchAll(PDO::FETCH_ASSOC);

if ($authors) {
	// show the authors
	foreach ($authors as $author) {
		echo $author['name'] . '<br>';
	}
}

// Output sample
Ngugi Wa Thiongo
Caleb Amisi