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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_internal_encoding('utf-8');
  5.  
  6. $text = "+7(812)678-67-67";
  7. $q = "!^((\ ?\+?7?)|(\ ?8))!";
  8. $w = "!(\D)!";
  9.  
  10. $text2 = preg_replace("$q", "8", $text);
  11. $text3 = preg_replace("$w", "", $text2);
  12.  
  13. echo "Введено некорректный номер *$text* исправлено на *$text3*";
  14.  
  15. ?>
Success #stdin #stdout 0.02s 52472KB
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Standard input is empty
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Введено некорректный номер *+7(812)678-67-67* исправлено на *88126786767*
https://ideone.com/uWTryH
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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