Online PHP editor | rfc for LCmNp

@ 2018-10-30T13:56:07Z

<?php

class GreatestCommonDivisor
{
  /**
   * Get the divisor of a given number.
   * 
   * @param int $num
   *   The number.
   *
   * @return int[]
   *   The divisors of the number.
   */
  private function factors(int $num): array
  {
    return array_filter(
      range(1, $num),
      function (int $i) use ($num) {
        return 0 === $num % $i;
      }
    );
  }

  /**
   * Get the greatest common divisor.
   * 
   * @param int ...$x
   *   The numbers.
   * 
   * @return int
   *   The greatest common divisor.
   */
  public function gcd(...$x): int
  {
    $x = array_map([$this, 'factors'], $x);
      
    $intersect = array_intersect(...$x);
      
    return end($intersect);
  }
}

trait gcdTrait
{
  /**
   * Get the greatest common divisor.
   * 
   * @param int ...$x
   *   The first number.
 * 
   * @return int
   *   The greatest common divisor.
   */
  function gcd(...$x): int
  {
    return (new GreatestCommonDivisor())->gcd(...$x);
  }
}

class customClass {
    use gcdTrait;
}

$foo = new customClass();

echo $foo->gcd(10, 20, 45);

Output for git.master_jit, git.master, rfc.property-hooks: 5

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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