drupol\phpermutations\Iterators\Prime

Complexity

Total Complexity

21

Size/Duplication

Total Lines	172
Duplicated Lines	5.81 %

Coupling/Cohesion

Dependencies

1

Test Coverage

Coverage

100%

Importance

Changes

0

13 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	current()	10	10	3
A	next()	0	3	1
A	key()	0	3	1
A	valid()	0	3	1
A	rewind()	0	3	1
A	count()	0	3	1
A	toArray()	0	9	2
A	setMaxLimit()	0	3	1
A	getMaxLimit()	0	3	1
A	setMinLimit()	0	3	1
A	getMinLimit()	0	3	2
B	isPrimeNumber()	0	22	5

<?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;

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

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

This method seems to be duplicated in your project.

    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) {
    $number = abs($number);

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

TRUE, FALSE and NULL must be lowercase; expected true, but found TRUE.

    }

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

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

    return TRUE;

TRUE, FALSE and NULL must be lowercase; expected true, but found 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);
  }

}