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  1. <?php
  2.  
  3. $data = [
  4. 	'1234',
  5.     '0033', // This needs to be a string otherwise it'll become '27'
  6.     '1155',
  7.     '2277',
  8.     '1288',
  9.     '8888'
  10. ];
  11.  
  12. function compare($number) {
  13. 	// Compare first 2 numbers
  14. 	if (intval($number[0]) !== intval($number[1])) {
  15. 		return false;
  16. 	}
  17.  
  18. 	// Compare last 2 numbers
  19. 	if (intval($number[2]) !== intval($number[3])) {
  20. 		return false;
  21. 	}
  22.  
  23. 	// Make sure first and last numbers aren't the same
  24. 	if (intval($number[0]) === intval($number[3])) {
  25. 		return false;
  26. 	}
  27.  
  28. 	return true;
  29. }
  30.  
  31. $data = array_filter($data, 'compare');
  32. $data2 = array_filter($data, function($number) {
  33. 	return intval($number[0]) === intval($number[1]) && intval($number[2]) === intval($number[3]) && intval($number[0]) !== intval($number[3]);
  34. });
  35.  
  36. // Output using compare
  37. print_r($data);
  38.  
  39. // Output using closure
  40. print_r($data2);
Success #stdin #stdout 0s 82880KB
comments ()
stdin
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Standard input is empty
stdout
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Array
(
    [1] => 0033
    [2] => 1155
    [3] => 2277
)
Array
(
    [1] => 0033
    [2] => 1155
    [3] => 2277
)
https://ideone.com/0VwJz8
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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