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  1. <?php
  2. $search = array(1, 2, 0, 4);
  3.  
  4. $callback = function($number) {
  5. 	return ($number == 0);
  6. };
  7.  
  8. function searchByCallback($array, callable $c) {
  9. 	$filter = array();
  10.  
  11. 	foreach($array as $value) {
  12. 		if ($c($value)) {
  13. 			$filter[] = $value;
  14. 		}
  15. 	}
  16.  
  17. 	return $filter;
  18. }
  19.  
  20. $searched = searchByCallback($search, $callback);
  21.  
  22. print_r($searched);
Success #stdin #stdout 0.02s 24448KB
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stdin
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Standard input is empty
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Array
(
    [0] => 0
)
https://ideone.com/JbFbD9
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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