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  1. <?php
  2.  
  3.  
  4.  
  5. error_reporting(-1);
  6.  
  7. mb_internal_encoding('utf-8');
  8.  
  9.  
  10.  
  11. $text = "А роза упала на лапу азора";
  12.  
  13. $noProb = str_replace(' ','',$text);
  14.  
  15. $downStr = mb_strtolower($noProb);
  16.  
  17.  
  18.  
  19. $length = mb_strlen($downStr);
  20.  
  21. $halfLength = floor($length/2);
  22.  
  23. $half1 = "";
  24.  
  25. $half2 = "";
  26.  
  27.  
  28.  
  29. for ($i = 0;$i <= ($halfLength);$i++){
  30.  
  31. 	$half1 .= mb_substr($downStr ,$i,1);
  32.  
  33. }
  34.  
  35. for ($ad =$length;$ad >= ($halfLength);$ad--){
  36. 	$half2 .= mb_substr($downStr,$ad,1);
  37.  
  38. }
  39.  
  40. echo " раз'$half1' два'$half2'\n";
  41.  
  42. ($half1== $half2) ?  $result = "Это палиндром" : $result = "Не палиндром";
  43.  
  44. echo $result;
  45.  
Success #stdin #stdout 0.01s 20568KB
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stdin
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Standard input is empty
stdout
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 раз'арозаупалан' два'арозаупалан'
Это палиндром
https://ideone.com/kFbw80
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

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