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  1. <?php
  2.  
  3. $input = '1ab2v3g4de';
  4. $length = \strlen($input);
  5. $numerics = [];
  6.  
  7. for ($i = 0; $i < $length; ++$i) {
  8.     if (\is_numeric($input[$i])) {
  9.         $numerics[] = [$i => $input[$i]];
  10.     }
  11. }
  12.  
  13. $numLastIndex = \count($numerics) - 1;
  14.  
  15. foreach ($numerics as $key => $numericData) {
  16.     $newKey = $numLastIndex - $key;
  17.     $input[\key($numericData)] = $numerics[$newKey][\key($numerics[$newKey])];
  18. }
  19.  
  20. \var_dump($input);
Success #stdin #stdout 0s 82560KB
comments (?)
stdin 
Standard input is empty
stdout 
string(10) "4ab3v2g1de"
https://ideone.com/EnstgL
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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