Ethiopian multiplication: Difference between revisions

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@@ Line 1,324: / Line 1,324: @@
 </pre>
+=={{header|PHP - OOP}}==
+<lang php><?php
+class ethiopian_multiply {
+   protected $result = 0;
+   protected function __construct($x, $y){
+      while($x > 1){
+         $this->sum_result($x, $y);
+         $x = $this->half_num($x);
+         $y = $this->double_num($y);
+      }
+      $this->sum_result($x, $y);
+   }
+   protected function half_num($x){
+      return floor($x/2);
+   }
+   protected function double_num($y){
+      return $y*2;
+   }
+   protected function not_even($n){
+      return $n%2 != 0 ? true : false;
+   }
+   protected function sum_result($x, $y){
+      if($this->not_even($x)){
+         $this->result += $y;
+      }
+   }
+   protected function get_result(){
+      return $this->result;
+   }
+   static public function init($x, $y){
+      $init = new ethiopian_multiply($x, $y);
+      return $init->get_result();
+   }
+}
+echo ethiopian_multiply::init(25, 15);
+?></lang>
 =={{header|PicoLisp}}==