- var_dump: documentation ( source)
<?php
$db = new stdClass;
$db->affected_rows = 1; //affected_rows is type int
echo "$db->affected_rows";
var_dump($db->affected_rows);
echo "empty($db->affected_rows)";
var_dump(empty($db->affected_rows));
echo "$db->affected_rows > 0";
var_dump($db->affected_rows > 0);