Prime::isPrimeNumber() - Code Metrics - drupol/phpermutations - Measure and Improve Code Quality continuously with Scrutinizer

Prime::isPrimeNumber() A
last analyzed 2024-05-15 07:26 UTC

↳ Parent: Prime

Complexity

Conditions	5
Paths	5

Size

Total Lines	23
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	5

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	10
c	1
b	0
f	0
dl	0
loc	23
ccs	11
cts	11
cp	1
rs	9.6111
cc	5
nc	5
nop	1
crap	5

<?php

declare(strict_types=1);

namespace drupol\phpermutations\Iterators;

use drupol\phpermutations\Iterators;

use const PHP_INT_MAX;

class Prime extends Iterators
{
    /**
     * The maximum limit.
     *
     * @var int
     */
    protected $max;

    /**
     * The minimum limit.
     *
     * @var int
     */
    protected $min;

    /**
     * Prime constructor.
     */
    public function __construct()
    {
        $this->setMaxLimit(PHP_INT_MAX);
        $this->setMinLimit(0);
        parent::__construct();
    }

    /**
     * {@inheritdoc}
     */
    public function current(): mixed
    {
        for ($i = $this->key(); $this->getMaxLimit() > $i; ++$i) {
            if ($this->isPrimeNumber($i)) {
                $this->key = $i;

                return $i;
            }
        }

        return $this->getMaxLimit();
    }

    /**
     * Get the maximum limit.
     *
     * @return int
     *             The limit
     */
    public function getMaxLimit(): int
    {
        return (int) $this->max;
    }

    /**
     * Get the minimum limit.
     *
     * @return int
     *             The limit
     */
    public function getMinLimit(): int
    {
        return 2 >= $this->min ? 2 : (int) $this->min;
    }

    /**
     * {@inheritdoc}
     *
     * @return void
     */
    public function next(): void
    {
        ++$this->key;
    }

    /**
     * {@inheritdoc}
     */
    public function rewind(): void
    {
        $this->key = $this->getMinLimit();
    }

    /**
     * Set the maximum limit.
     *
     * @param int $max
     *                 The limit
     *
     * @return void
     */
    public function setMaxLimit($max): void
    {
        $this->max = $max;
    }

    /**
     * Set the minimum limit.
     *
     * @param int $min
     *                 The limit
     *
     * @return void
     */
    public function setMinLimit($min): void
    {
        $this->min = $min;
    }

    /**
     * {@inheritdoc}
     *
     * @return bool
     */
    public function valid(): bool
    {
        return $this->current() < $this->getMaxLimit();
    }

    /**
     * Test if a number is prime or not.
     *
     * @param int $number
     *                    The number to test
     *
     * @return bool
     *              The true if the number is prime, false otherwise
     */
    protected function isPrimeNumber($number): bool
    {
        $number = abs($number);

        // 2 is an exception.
        if (2 === $number) {
            return true;
        }

        // Check if number is even.
        if (!($number & 1)) {
            return false;
        }

        $sqrtNumber = sqrt($number);

        for ($divisor = 3; $divisor <= $sqrtNumber; $divisor += 2) {
            if (0 === $number % $divisor) {
                return false;
            }
        }

        return true;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace drupol\phpermutations\Iterators;
6
7		use drupol\phpermutations\Iterators;
8
9		use const PHP_INT_MAX;
10
11		class Prime extends Iterators
12		{
13		/**
14		* The maximum limit.
15		*
16		* @var int
17		*/
18		protected $max;
19
20		/**
21		* The minimum limit.
22		*
23		* @var int
24		*/
25		protected $min;
26
27		/**
28		* Prime constructor.
29		*/
30	2	public function __construct()
31		{
32	2	$this->setMaxLimit(PHP_INT_MAX);
33	2	$this->setMinLimit(0);
34	2	parent::__construct();
35	2	}
36
37		/**
38		* {@inheritdoc}
39		*/
40	2	public function current(): mixed
41		{
42	2	for ($i = $this->key(); $this->getMaxLimit() > $i; ++$i) {
43	2	if ($this->isPrimeNumber($i)) {
44	2	$this->key = $i;
45
46	2	return $i;
47		}
48		}
49
50	2	return $this->getMaxLimit();
51		}
52
53		/**
54		* Get the maximum limit.
55		*
56		* @return int
57		* The limit
58		*/
59	2	public function getMaxLimit(): int
60		{
61	2	return (int) $this->max;
62		}
63
64		/**
65		* Get the minimum limit.
66		*
67		* @return int
68		* The limit
69		*/
70	2	public function getMinLimit(): int
71		{
72	2	return 2 >= $this->min ? 2 : (int) $this->min;
73		}
74
75		/**
76		* {@inheritdoc}
77		*
78		* @return void
79		*/
80	2	public function next(): void
81		{
82	2	++$this->key;
83	2	}
84
85		/**
86		* {@inheritdoc}
87		*/
88	2	public function rewind(): void
89		{
90	2	$this->key = $this->getMinLimit();
91	2	}
92
93		/**
94		* Set the maximum limit.
95		*
96		* @param int $max
97		* The limit
98		*
99		* @return void
100		*/
101	2	public function setMaxLimit($max): void
102		{
103	2	$this->max = $max;
104	2	}
105
106		/**
107		* Set the minimum limit.
108		*
109		* @param int $min
110		* The limit
111		*
112		* @return void
113		*/
114	2	public function setMinLimit($min): void
115		{
116	2	$this->min = $min;
117	2	}
118
119		/**
120		* {@inheritdoc}
121		*
122		* @return bool
123		*/
124	2	public function valid(): bool
125		{
126	2	return $this->current() < $this->getMaxLimit();
127		}
128
129		/**
130		* Test if a number is prime or not.
131		*
132		* @param int $number
133		* The number to test
134		*
135		* @return bool
136		* The true if the number is prime, false otherwise
137		*/
138	2	protected function isPrimeNumber($number): bool
139		{
140	2	$number = abs($number);
141
142		// 2 is an exception.
143	2	if (2 === $number) {
144	1	return true;
145		}
146
147		// Check if number is even.
148	2	if (!($number & 1)) {
149	2	return false;
150		}
151
152	2	$sqrtNumber = sqrt($number);
153
154	2	for ($divisor = 3; $divisor <= $sqrtNumber; $divisor += 2) {
155	2	if (0 === $number % $divisor) {
156	2	return false;
157		}
158		}
159
160	2	return true;
161		}
162		}
163

drupol / phpermutations

Prime::isPrimeNumber() A last analyzed 2024-05-15 07:26 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

Prime::isPrimeNumber() A
last analyzed 2024-05-15 07:26 UTC