A PDO Example Using SQLite

This is an example of using PDO via the SQLite driver, just to give you a taste of what PDO might look like.

<?php

header('Content-type: text/plain'); /* This is just for the pastebin, to control the debug output above */
$_POST['searchtype'] = 'title';     /* This is just for the pastebin, since we can't pass in POST args */
$_POST['searchterm'] = 'King';	    /* This is just for the pastebin, since we can't pass in POST args */


/* Create our database first */
$books = array(
	array(':id' => 0, ':author' => 'J. R. R. Tolkien', ':title' => 'The Lord of the Rings: The Fellowship of the Ring',),
	array(':id' => 1, ':author' => 'J. R. R. Tolkien', ':title' => 'The Lord of the Rings: The Two Towers',),
	array(':id' => 2, ':author' => 'J. R. R. Tolkien', ':title' => 'The Lord of the Rings: The Return of the King',),
);

$pdo = new PDO('sqlite::memory:');
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$result = $pdo->exec('CREATE TABLE books(id int, title varchar(255), author varchar(255))');
$stmt = $pdo->prepare('INSERT INTO books(id, title, author) values(:id, :title, :author)');
try {
        foreach($books as $book) $stmt->execute($book);
} catch (PDOException $e) {
        echo $e;
}
/* OK, now the database exists and has data, we can query it */

switch($_POST['searchtype']) {
	case 'title':  		/* fall-through */
	case 'author':		/* fall-through */
	case 'id':		/* fall-through */
		$query = $pdo->prepare("select * from books where $_POST[searchtype] LIKE :search");
		break;
		
	default:
		/* They tried to do something unexpected, and possibly evil. Log it and do something smart about it. */
}

if (! $query->execute(array(':search' => '%'.$_POST['searchterm'].'%'))) {
	/* No matches, do something about it */
}
foreach($query->fetchAll(PDO::FETCH_BOTH) as $row) {
        var_dump($row);
}