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  1. <?php
  2.     $re = '/(?<=\()\d+(?=\)$)/m';
  3.     $str = 'Lorem ipsum dolor sit amet (1337)';
  4.     $subst = '$1';
  5.  
  6.     $result = preg_replace_callback(
  7.             $re,
  8.             function ($matches) {
  9.                 return ++$matches[0];
  10.             },
  11.             $str
  12.         );
  13.     echo "The result of the substitution is ".$result;
  14.  
Success #stdin #stdout 0.02s 23956KB
comments (?)
stdin 
Standard input is empty
stdout 
The result of the substitution is Lorem ipsum dolor sit amet (1338)
https://ideone.com/4LPSff
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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