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Differences Between: [Versions 310 and 400] [Versions 39 and 400]

   1  <?php
   2  
   3  namespace Matrix\Operators;
   4  
   5  use Matrix\Matrix;
   6  use Matrix\Exception;
   7  
   8  abstract class Operator
   9  {
  10      /**
  11       * Stored internally as a 2-dimension array of values
  12       *
  13       * @property mixed[][] $matrix
  14       **/
  15      protected $matrix;
  16  
  17      /**
  18       * Number of rows in the matrix
  19       *
  20       * @property integer $rows
  21       **/
  22      protected $rows;
  23  
  24      /**
  25       * Number of columns in the matrix
  26       *
  27       * @property integer $columns
  28       **/
  29      protected $columns;
  30  
  31      /**
  32       * Create an new handler object for the operation
  33       *
  34       * @param Matrix $matrix The base Matrix object on which the operation will be performed
  35       */
  36      public function __construct(Matrix $matrix)
  37      {
  38          $this->rows = $matrix->rows;
  39          $this->columns = $matrix->columns;
  40          $this->matrix = $matrix->toArray();
  41      }
  42  
  43      /**
  44       * Compare the dimensions of the matrices being operated on to see if they are valid for addition/subtraction
  45       *
  46       * @param Matrix $matrix The second Matrix object on which the operation will be performed
  47       * @throws Exception
  48       */
  49      protected function validateMatchingDimensions(Matrix $matrix): void
  50      {
  51          if (($this->rows != $matrix->rows) || ($this->columns != $matrix->columns)) {
  52              throw new Exception('Matrices have mismatched dimensions');
  53          }
  54      }
  55  
  56      /**
  57       * Compare the dimensions of the matrices being operated on to see if they are valid for multiplication/division
  58       *
  59       * @param Matrix $matrix The second Matrix object on which the operation will be performed
  60       * @throws Exception
  61       */
  62      protected function validateReflectingDimensions(Matrix $matrix): void
  63      {
  64          if ($this->columns != $matrix->rows) {
  65              throw new Exception('Matrices have mismatched dimensions');
  66          }
  67      }
  68  
  69      /**
  70       * Return the result of the operation
  71       *
  72       * @return Matrix
  73       */
  74      public function result(): Matrix
  75      {
  76          return new Matrix($this->matrix);
  77      }
  78  }