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  1. <?php
  2. $a = 3;
  3. $b = 5;
  4.  
  5. $arrA = [];
  6. $arrB = [];
  7.  
  8. for ($i = 1; $i <= $a; $i++) {
  9. 	$arrA[] = $i;
  10. }
  11.  
  12. for ($i = 1; $i <= $b; $i++) {
  13. 	$arrB[] = $i;
  14. }
  15.  
  16. $arrNotExists = array_diff($arrB, $arrA);
  17.  
  18. var_dump($arrNotExists);
Success #stdin #stdout 0.01s 23468KB
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array(2) {
  [3]=>
  int(4)
  [4]=>
  int(5)
}
https://ideone.com/OtSwnN
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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