Moodle 3.9 XRef and Diffs

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Long Term Support Release

Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.

Moodle 3.9 Database Schema (by Marcus Green)

/lib/mlbackend/php/phpml/src/Phpml/Math/ -> Product.php (source)

   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  namespace Phpml\Math;
   6  
   7  class Product
   8  {
   9      /**
  10       * @return mixed
  11       */
  12      public static function scalar(array $a, array $b)
  13      {
  14          $product = 0;
  15          foreach ($a as $index => $value) {
  16              if (is_numeric($value) && is_numeric($b[$index])) {
  17                  $product += (float) $value * (float) $b[$index];
  18              }
  19          }
  20  
  21          return $product;
  22      }
  23  }