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

Completed

Push — master ( cedc93...ab3e34 )

by Pol

created 2016-12-30 13:19 UTC

Prime::isPrimeNumber() B

↳ Parent: Prime

Complexity

Conditions	5
Paths	7

Size

Total Lines	19
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	5

Importance

Changes

Metric	Value
dl	0
loc	19
ccs	9
cts	9
cp	1
rs	8.8571
c	0
b	0
f	0
cc	5
eloc	11
nc	7
nop	1
crap	5

<?php

namespace drupol\phpermutations\Iterators;

use drupol\phpermutations\Combinatorics;

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

  /**
   * @var int
   */
  protected $max;

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

  /**
   * @var int
   */
  protected $count = 1;

  /**
   * @var int
   */
  protected $current = 2;

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

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

  /**
   * @inheritdoc
   */
  public function next() {
    ++$this->key;
    for($i = $this->key; $i < $this->getMaxLimit(); $i++) {

      if ($this->isPrimeNumber($i)) {
        $this->key = $i;
        $this->current = $i;
        $this->count++;
        break;
      }
    }
  }

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

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

  /**
   * @inheritdoc
   */
  public function rewind() {
    $this->key = 2;
    $this->current = 2;
  }

  /**
   * @return int
   */
  public function count() {
    return count($this->toArray());
  }

  /**
   * @return array
   */
  public function toArray() {
    $data = array();

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

    return $data;
  }


  /**
   * @param $number
   *
   * @return bool
   */
  protected function isPrimeNumber($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;

  }

  /**
   * @param int $max
   */
  public function setMaxLimit($max) {
    $this->max = $max;
  }

  /**
   * @return int
   */
  public function getMaxLimit() {
    return intval($this->max);
  }

}


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		* @var int
16		*/
17		protected $max;
18
19		/**
20		* @var int
21		*/
22		protected $key;
23
24		/**
25		* @var int
26		*/
27		protected $count = 1;
28
29		/**
30		* @var int
31		*/
32		protected $current = 2;
33
34		/**
35		* Prime constructor.
36		*/
37	2	public function __construct() {
38	2	$this->setMaxLimit(PHP_INT_MAX);
39	2	}
40
41		/**
42		* @inheritdoc
43		*/
44	2	public function current() {
45	2	return $this->current;
46		}
47
48		/**
49		* @inheritdoc
50		*/
51	2	public function next() {
52	2	++$this->key;
53	2	for($i = $this->key; $i < $this->getMaxLimit(); $i++) {
		0 ignored issues – show Coding Style introduced 2016-12-29 00:39 UTC by Report Bug Copy Issue Report Expected 1 space after FOR keyword; 0 found Loading history...
54	2	if ($this->isPrimeNumber($i)) {
55	2	$this->key = $i;
56	2	$this->current = $i;
57	2	$this->count++;
58	2	break;
59		}
60	2	}
61	2	}
62
63		/**
64		* @inheritdoc
65		*/
66	2	public function key() {
67	2	return $this->key;
68		}
69
70		/**
71		* @inheritdoc
72		*/
73	2	public function valid() {
74	2	return ($this->current == $this->key());
75		}
76
77		/**
78		* @inheritdoc
79		*/
80	2	public function rewind() {
81	2	$this->key = 2;
82	2	$this->current = 2;
83		}
84
85		/**
86		* @return int
87	2	*/
88	2	public function count() {
89		return count($this->toArray());
90	2	}
91	2
92	2	/**
93	2	* @return array
94	2	*/
95		public function toArray() {
96	2	$data = array();
97
98		for ($this->rewind(); $this->valid(); $this->next()) {
99		$data[] = $this->current();
100		}
101
102	2	return $data;
103	2	}
104
105	2
106	2	/**
107	2	* @param $number
108		*
109	2	* @return bool
110		*/
111		protected function isPrimeNumber($number) {
112		$n = abs($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...
113		$i = 2;
114
115		if (10 < $number) {
116		if (in_array(substr($number, -1 ), array(0, 2, 4, 6, 8))) {
117		return FALSE;
		1 ignored issue – show Coding Style introduced 2016-12-29 00:39 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `false`, but found `FALSE`. Loading history...
118	2	}
119	2	}
120	2
121		while ($i <= sqrt($n)) {
122	2	if ($n % $i == 0) {
123	2	return FALSE;
		1 ignored issue – show Coding Style introduced 2016-12-30 13:34 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `false`, but found `FALSE`. Loading history...
124	2	}
125		$i++;
126	2	}
127	2
128		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...
129	2	}
130
131		/**
132		* @param int $max
133		*/
134		public function setMaxLimit($max) {
135	2	$this->max = $max;
136	2	}
137	2
138		/**
139		* @return int
140		*/
141		public function getMaxLimit() {
142	2	return intval($this->max);
143	2	}
144
145		}
146

drupol / phpermutations

Push — master ( cedc93...ab3e34 )

Prime::isPrimeNumber() B

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