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  1. <?php
  2. error_reporting(-1);
  3.  
  4. mb_internal_encoding('utf-8');
  5.  
  6. $lookalikes = [
  7. 'a' => 'а', 'b' => 'в', 'c' => 'с', 'e' => 'е', 'h' => 'н',
  8. 'k' => 'к', 'm' => 'м', 'o' => 'о', 'p' => 'р', 't' => 'т',
  9. 'x' => 'х', 'y' => 'у'
  10. ];
  11.  
  12. function isDurak($word) {
  13. global $lookalikes;
  14. $word = mb_strtolower(str_replace(' ', '', $word));
  15. $word = strtr($word, $GLOBALS['lookalikes']);
  16. return $word === 'дурак';
  17. }
  18.  
  19. $text = 'Ты ДуРАк и вообще д у р а к, а еще ты durak!';
  20. $words = preg_split('/(\s+)/u', $text, -1, PREG_SPLIT_NO_EMPTY);
  21.  
  22. $result = [];
  23. foreach ($words as $word) {
  24. $result[] = isDurak($word) ? 'хороший человек' : $word;
  25. }
  26.  
  27. echo implode(' ', $result) . "\n";
Success #stdin #stdout 0.03s 25540KB
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Ты хороший человек и вообще д у р а к, а еще ты durak!
https://ideone.com/qYkqcK
language:
PHP (php 7.3.5)
created:
1 day ago
visibility:
public

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