WBW\Library\Core\Argument\FloatHelper

Complexity

Total Complexity

5

Size/Duplication

Total Lines	32
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	isFloat()	0	5	2
A	parseString()	0	9	3

<?php

/**
 * This file is part of the core-library package.
 *
 * (c) 2018 WEBEWEB
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace WBW\Library\Core\Argument;

use WBW\Library\Core\Exception\Argument\FloatArgumentException;

/**
 * Float helper.
 *
 * @author webeweb <https://github.com/webeweb/>
 * @package WBW\Library\Core\Argument
 */
class FloatHelper {

    /**
     * Determines if a value is a float.
     *
     * @param mixed $value The value.
     * @throws FloatArgumentException Throws a Float argument exception if the value is not of expected type.
     */
    public static function isFloat($value) {
        if (false === is_float($value)) {
            throw new FloatArgumentException($value);
        }
    }

    /**
     * Parse a string.
     *
     * @param string $value The string value.
     * @return float Returns the float represented by the string value.
     * @throws FloatArgumentException Throws a float argument exception if the string value does not represent a float.
     */
    public static function parseString($value) {
        if (null === $value) {
            return null;
        }
        if (0 === preg_match("/^[0-9]{1,}(\.[0-9]{0,})?$/", $value)) {
            throw new FloatArgumentException($value);
        }
        return floatval($value);
    }

}