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<?php
 
$f = function () { return "f"; };
 
var_dump((array) "what what");
var_dump((array) true);
var_dump((array) $f);

Success #stdin #stdout 0.01s 20520KB

stdin

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Standard input is empty

stdout

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array(1) {
  [0]=>
  string(9) "what what"
}
array(1) {
  [0]=>
  bool(true)
}
array(1) {
  [0]=>
  object(Closure)#1 (0) {
  }
}

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language:

PHP (php 7.3.5)

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public

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