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  1. <?php
  2. function sanitize($string) {
  3.     $list = array(
  4.         "/dumb/",
  5.         "/stupid/",
  6.         "/brainless/"
  7.     );
  8.  
  9.     # replace bad words
  10.     $string = preg_replace_callback($list,
  11.         function ($matches) {
  12.             return preg_replace('/\B./', '-', $matches[0]);
  13.         }, 
  14.         $string);
  15.     return $string;
  16. }
  17.  
  18. echo sanitize('hello, i think you are not intelligent, you are actually dumb and stupid.');
Success #stdin #stdout 0.02s 24048KB
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Standard input is empty
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hello, i think you are not intelligent, you are actually d--- and s-----.
https://ideone.com/GioI2c
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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