function displayContent($condition = null) { include 'classes/Event.php'; $connection = Connection::get(); $sentenceSQL = "select * from Events"; if ($condition != null) { $sentenceSQL .= " where category = " . $condition; } $sentenceSQL .= " limit 30"; $results = $connection->select($sentenceSQL); while ($evt = $results->fetch_assoc()) { $event = new Event($evt['id'], $evt['user'], $evt['category'], $evt['name'], $evt['address'], $evt['city'], $evt['description'], $evt['dateStart'], $evt['dateEnd'], $evt['img'], $evt['public'], $evt['offer']); echo '<div class="col s12 m4">'; $event->paintEvent(); echo '</div>'; } }