Prime::next() - Code Metrics - Inspection of "Initial commit." - drupol/phpermutations - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 6bb48a...cd3b63 )

by Pol

created 2017-01-02 14:05 UTC

Prime::next() A

↳ Parent: Prime

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	3
ccs	3
cts	3
cp	1
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0
crap	1

<?php

namespace drupol\phpermutations\Iterators;

use drupol\phpermutations\Combinatorics;

/**
 * Class Prime.
 *
 * @package drupol\phpermutations\Iterators
 */
class Prime extends Combinatorics implements \Iterator, \Countable {

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

  /**
   * The maximum limit.
   *
   * @var int
   */
  protected $max;

  /**
   * The key.
   *
   * @var int
   */
  protected $key;

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

  /**
   * {@inheritdoc}
   */
  public function current() {

    for ($i = $this->key(); $i < $this->getMaxLimit(); $i++) {
      if ($this->isPrimeNumber($i)) {
        $this->key = $i;
        return $i;
      }
    }

    return $this->getMaxLimit();
  }

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

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

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

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

  /**
   * Count elements of an object.
   *
   * @return int
   *   The number of element.
   */
  public function count() {
    return count($this->toArray());
  }

  /**
   * Convert the iterator into an array.
   *
   * @return array
   *   The elements.
   */
  public function toArray() {
    $data = array();

    for ($this->rewind(); $this->valid(); $this->next()) {
      $data[] = $this->current();
    }

    return $data;
  }

  /**
   * 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) {
    $n = abs($number);

    $i = 2;

    if (10 < $number) {
      if (in_array(substr($number, -1), array(0, 2, 4, 6, 8))) {
        return FALSE;
      }
    }

    while ($i <= sqrt($n)) {
      if ($n % $i == 0) {
        return FALSE;
      }
      $i++;
    }

    return TRUE;

  }

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

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

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

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

}


1			<?php
2
3			namespace drupol\phpermutations\Iterators;
4
5			use drupol\phpermutations\Combinatorics;
6
7			/**
8			* Class Prime.
9			*
10			* @package drupol\phpermutations\Iterators
11			*/
12			class Prime extends Combinatorics implements \Iterator, \Countable {
13
14			/**
15			* The minimum limit.
16			*
17			* @var int
18			*/
19			protected $min;
20
21			/**
22			* The maximum limit.
23			*
24			* @var int
25			*/
26			protected $max;
27
28			/**
29			* The key.
30			*
31			* @var int
32			*/
33			protected $key;
34
35			/**
36			* Perfect constructor.
37			*/
38	4		public function __construct() {
39	4		$this->setMaxLimit(PHP_INT_MAX);
40	4		$this->setMinLimit(0);
41	4		}
42
43			/**
44			* {@inheritdoc}
45			*/
46	4	View Code Duplication	public function current() {
			0 ignored issues – show Duplication introduced 2017-01-02 14:08 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
47	4		for ($i = $this->key(); $i < $this->getMaxLimit(); $i++) {
48	4		if ($this->isPrimeNumber($i)) {
49	4		$this->key = $i;
50	4		return $i;
51			}
52	4		}
53
54	4		return $this->getMaxLimit();
55			}
56
57			/**
58			* {@inheritdoc}
59			*/
60	4		public function next() {
61	4		$this->key++;
62	4		}
63
64			/**
65			* {@inheritdoc}
66			*/
67	4		public function key() {
68	4		return $this->key;
69			}
70
71			/**
72			* {@inheritdoc}
73			*/
74	4		public function valid() {
75	4		return $this->current() < $this->getMaxLimit();
76			}
77
78			/**
79			* {@inheritdoc}
80			*/
81	4		public function rewind() {
82	4		$this->key = $this->getMinLimit();
83	4		}
84
85			/**
86			* Count elements of an object.
87			*
88			* @return int
89			* The number of element.
90			*/
91	4		public function count() {
92	4		return count($this->toArray());
93			}
94
95			/**
96			* Convert the iterator into an array.
97			*
98			* @return array
99			* The elements.
100			*/
101	4		public function toArray() {
102	4		$data = array();
103
104	4		for ($this->rewind(); $this->valid(); $this->next()) {
105	4		$data[] = $this->current();
106	4		}
107
108	4		return $data;
109			}
110
111			/**
112			* Test if a number is prime or not.
113			*
114			* @param int $number
115			* The number to test.
116			*
117			* @return bool
118			* The true if the number is prime, false otherwise.
119			*/
120	4		protected function isPrimeNumber($number) {
121	4		$n = abs($number);
			0 ignored issues – show Comprehensibility introduced 2016-12-29 00:39 UTC by Report Bug Copy Issue Report Avoid variables with short names like $n. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
122	4		$i = 2;
123
124	4		if (10 < $number) {
125	4		if (in_array(substr($number, -1), array(0, 2, 4, 6, 8))) {
126	4		return FALSE;
127			}
128	4		}
129
130	4		while ($i <= sqrt($n)) {
131	4		if ($n % $i == 0) {
132	4		return FALSE;
133			}
134	4		$i++;
135	4		}
136
137	4		return TRUE;
			0 ignored issues – show Coding Style introduced 2016-12-29 00:39 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `true`, but found `TRUE`. Loading history...
138			}
139
140			/**
141			* Set the maximum limit.
142			*
143			* @param int $max
144			* The limit.
145			*/
146	4		public function setMaxLimit($max) {
147	4		$this->max = $max;
148	4		}
149
150			/**
151			* Get the maximum limit.
152			*
153			* @return int
154			* The limit.
155			*/
156	4		public function getMaxLimit() {
157	4		return intval($this->max);
158			}
159
160			/**
161			* Set the minimum limit.
162			*
163			* @param int $min
164			* The limit.
165			*/
166	4		public function setMinLimit($min) {
167	4		$this->min = $min;
168	4		}
169
170			/**
171			* Get the minimum limit.
172			*
173			* @return int
174			* The limit.
175			*/
176	4		public function getMinLimit() {
177	4		return $this->min <= 2 ? 2 : intval($this->min);
178			}
179
180			}
181

drupol / phpermutations

Push — master ( 6bb48a...cd3b63 )

Prime::next() A

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