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  1. <?php
  2.  
  3. $str = "Ok!!!\nReally????\nI guess.....";
  4. $res = preg_replace('/([?!.])\1+/', '$1', $str);
  5. echo $res;
Success #stdin #stdout 0.01s 82944KB
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stdin
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Standard input is empty
stdout
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Ok!
Really?
I guess.
https://ideone.com/NgPkWz
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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