Magic::tailRecursion() - Code Metrics - icy2003/php - Measure and Improve Code Quality continuously with Scrutinizer

Magic::tailRecursion() A
last analyzed 2024-05-09 17:43 UTC

↳ Parent: Magic

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
cc	2
eloc	4
c	0
b	0
f	0
nc	2
nop	2
dl	0
loc	8
ccs	0
cts	7
cp	0
crap	6
rs	10

<?php
/**
 * Class Magic
 *
 * @link https://www.icy2003.com/
 * @author icy2003 <[email protected]>
 * @copyright Copyright (c) 2017, icy2003
 */

namespace icy2003\php\ihelpers;

/**
 * 一个奇怪的类
 */
class Magic
{
    /**
     * 消除尾递归.
     *
     * @param callable $callback 使用匿名函数尾调用的函数
     * @param array    $params   函数参数
     *
     * @example
     *
     * 以斐波那契函数为例子
     * function factorial($n, $accumulator = 1)
     * {
     *     if (0 == $n) {
     *        return $accumulator;
     *     }
     *     return function () use ($n, $accumulator) {
     *        return factorial($n - 1, $accumulator * $n);
     *     };
     * }
     * Magic::tailRecursion('factorial', array(100));
     *
     * @return mixed
     */
    public static function tailRecursion($callback, $params)
    {
        $result = call_user_func_array($callback, $params);
        while (is_callable($result)) {
            $result = $result();
        }

        return $result;
    }
}


1			<?php
2			/**
3			* Class Magic
4			*
5			* @link https://www.icy2003.com/
6			* @author icy2003 <[email protected]>
7			* @copyright Copyright (c) 2017, icy2003
8			*/
9
10			namespace icy2003\php\ihelpers;
11
12			/**
13			* 一个奇怪的类
14			*/
15			class Magic
16			{
17			/**
18			* 消除尾递归.
19			*
20			* @param callable $callback 使用匿名函数尾调用的函数
21			* @param array $params 函数参数
22			*
23			* @example
24			*
25			* 以斐波那契函数为例子
26			* function factorial($n, $accumulator = 1)
27			* {
28			* if (0 == $n) {
29			* return $accumulator;
30			* }
31			* return function () use ($n, $accumulator) {
32			* return factorial($n - 1, $accumulator * $n);
33			* };
34			* }
35			* Magic::tailRecursion('factorial', array(100));
36			*
37			* @return mixed
38			*/
39			public static function tailRecursion($callback, $params)
40			{
41			$result = call_user_func_array($callback, $params);
42			while (is_callable($result)) {
43			$result = $result();
44			}
45
46			return $result;
47			}
48			}
49

icy2003 / php

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Magic::tailRecursion() A last analyzed 2024-05-09 17:43 UTC

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Magic::tailRecursion() A
last analyzed 2024-05-09 17:43 UTC