<?php

$host = 'localhost';
$db   = 'webcrawler';
$user = 'webcrawler';
$pass = 'secret';
$charset = 'utf8';

$dsn = "mysql:host=$host;dbname=$db;charset=$charset";

$pdo = new PDO($dsn, $user, $pass);

$sql = 'SELECT * FROM document
WHERE MATCH (`text`, subject, title, description, creator, publisher)
AGAINST (:search IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION);';

$stmt = $pdo.prepare($sql);
$stmt.execute(['search' => 'my-search-phrase']);

while($doc = $stmt->fetch(PDO::FETCH_OBJ)) {
    echo "URL: $doc->url    Content-Type: $doc->content_type    Crawled Date: $doc->crawl_date";
}