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  1. <?php
  2.  
  3. function O($f, $g) {
  4.     return function () use ($f, $g) {
  5.         $args = func_get_args();
  6.         return $f(call_user_func_array($g, $args));
  7.     };
  8. }
  9.  
  10. function Foo($v) {
  11.     echo "foo(int v = $v)\n";
  12.     return $v + 1;
  13. }
  14.  
  15. function Bar($v) {
  16.     echo "bar(int v = $v)\n";
  17.     return $v + 1;
  18. }
  19.  
  20. $res = O('Foo', 'Bar')(1);
  21. echo "res = $res\n";
Success #stdin #stdout 0s 82560KB
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stdin
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Standard input is empty
stdout
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bar(int v = 1)
foo(int v = 2)
res = 3
https://ideone.com/cSGHW3
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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