<?php
require_once dirname(__FILE__) . '/../btree.php';
// open B+Tree; file does not have to exist
$btree = btree::open('my.tree');
// btree::open() returns false if anything goes wrong
if ($btree === FALSE) {
die('cannot open');
}
// sets key 'key' to value 'value'
$btree->set('key', 'value');
// value can be arbitrary PHP value (string, integer, boolean, array...)
// => anything that can be searialized through serialize()
// gets value under key 'key'
$value = $btree->get('key');
// check value
assert($btree->get('key') === 'value');
// no cleanup needed!
// that's all you need to manipulate with this efficient key-value storage ;-)
function BTreeData($length = 1000)
{
$this->length = $length;
$handle = fopen('my.tree', 'w+');
fclose($handle);
$this->btree = btree::open('my.tree');
}
