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Apr 20th, 2018
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  1. ```php
  2. <?php
  3.  
  4. $add = 1;
  5. $add2 = 1;
  6.  
  7. $callable_one = function ($item) use ($add, $add2) {
  8.  
  9. global $add, $add2;
  10.  
  11. echo "item_one: $item \n";
  12.  
  13. $add++;
  14. $add2++;
  15. };
  16.  
  17. call_user_func($callable_one, "two");
  18.  
  19. echo "resultadd: $add\n";
  20. echo "resultadd2: $add2\n";
  21.  
  22. ```
  23. 结果
  24. ```
  25. item_one: two
  26. resultadd: 2
  27. resultadd2: 2
  28. ```
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