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  1. <?php
  2.  
  3. // your code goes here
  4.  
  5. $text = "+7(919)-122-88-99";
  6. $result = null;
  7.  
  8. $userInputRegexp = '/^(8|[+]7)[\\(\\)0-9-]{10,40}/u';
  9. $filterRegexp = '/[\\(\\)-]/u';
  10. $changeFirstNumberRegexp = '/[+]7/u';
  11.  
  12. if (preg_match($userInputRegexp,$text)){
  13. 	$result = preg_replace($filterRegexp,"",preg_replace($changeFirstNumberRegexp,"8",$text));	
  14. 	echo $result;
  15. } else
  16. 	echo "Wrong number!";
Success #stdin #stdout 0.02s 24400KB
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89191228899
https://ideone.com/Tb533M
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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