Zabbix

<?php declare(strict_types = 0);

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

** See the GNU Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

/**

 * Class containing information on math functions.

 */

final class CMathFunctionData {

​

    /**

     * Known math functions along with number or range of required parameters.

     *

     * @var array

     */

    private const PARAMETERS = [

        'abs' =>                [['count' => 1]],

        'acos' =>               [['count' => 1]],

        'ascii' =>              [['count' => 1]],

        'asin' =>               [['count' => 1]],

        'atan' =>               [['count' => 1]],

        'atan2' =>              [['count' => 2]],

        'avg' =>                [['min' => 1]],

        'between' =>            [['count' => 3]],

        'bitand' =>             [['count' => 2]],

        'bitlength' =>          [['count' => 1]],

        'bitlshift' =>          [['count' => 2]],

        'bitnot' =>             [['count' => 1]],

        'bitor' =>              [['count' => 2]],

        'bitrshift' =>          [['count' => 2]],

        'bitxor' =>             [['count' => 2]],

        'bytelength' =>         [['count' => 1]],

        'cbrt' =>               [['count' => 1]],

        'ceil' =>               [['count' => 1]],

        'char' =>               [['count' => 1]],

        'concat' =>             [['min' => 2]],

        'cos' =>                [['count' => 1]],

        'cosh' =>               [['count' => 1]],

        'cot' =>                [['count' => 1]],

        'count' =>              [['min' => 1, 'max' => 3]],

        'date' =>               [['count' => 0]],

        'dayofmonth' =>         [['count' => 0]],

        'dayofweek' =>          [['count' => 0]],

        'degrees' =>            [['count' => 1]],

        'e' =>                  [['count' => 0]],

        'exp' =>                [['count' => 1]],

        'expm1' =>              [['count' => 1]],

        'floor' =>              [['count' => 1]],

        'histogram_quantile' => [['min' => 5, 'step' => 2], ['count' => 2]],

        'in' =>                 [['min' => 2]],

        'insert' =>             [['count' => 4]],

        'jsonpath' =>           [['min' => 2, 'max' => 3]],