<?php
/**
* Main file
*/
//AJAX requests only
//if ($_SERVER['HTTP_X_REQUESTED_WITH'] != 'XMLHttpRequest') {
// header("HTTP/1.0 404 Not Found");
// die();
//}
include 'includes/autoload.php';
$callback = null;
$response = '';
if (isset($_REQUEST['callback'])) {
$callback = trim($_REQUEST['callback']);
}
if (!isset($_REQUEST['expr'])) {
$response = 'Request error. No expression was given.';
} else {
$calc = new \Calculator\Calculator();
$response = $calc->solve(trim($_REQUEST['expr']));
}
$response = "{msg: {$response}}";
if ($callback) {
echo "{$callback}({$response})";
} else {
echo $response;
}
<?php
require_once 'vendor/autoload.php';
class BiggerOperator extends \Calculator\Operators\BaseOperator
{
protected $symbol = '>';
protected $priority = 2;
public function process($index, \SplDoublyLinkedList $list)
{
$first = $list->offsetGet($index - 1);
$second = $list->offsetGet($index + 1);
$result = (bool) ($first > $second);
$list->offsetSet($index - 1, $result);
unset($list[$index]);
unset($list[$index]);
}
}
$formula = '( ( 10 * x + y ) / z AND ( 20 OR 0 ) XOR ( x XNOR y ) ) OR 1 + 2';
$calculator = new \Calculator\Calculator($formula);
//$calculator->setFormula($formula);
\Calculator\Calculator::extend(BiggerOperator::class);
var_dump($calculator->result(['x' => 10, 'y' => 20, 'z' => 2]));