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a guest May 23rd, 2019 56 Never
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  1. <?php
  2. class Pipeline
  3. {
  4.     public static function make_pipeline(...$funcs)
  5.     {
  6.         return function($arg) use ($funcs)
  7.         {
  8.             $result = $arg;
  9.             foreach($funcs as $fungsi){
  10.                 $result = $fungsi($result);
  11.             }
  12.             return $result;
  13.         };
  14.     }
  15. }
  16.  
  17. $fun = Pipeline::make_pipeline(function($x) { return $x * 3; }, function($x) { return $x + 1; },
  18.                           function($x) { return $x / 2; });
  19. echo $fun(3); # should print 5
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