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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_internal_encoding('utf-8');
  5.  
  6.  
  7. $text = "А РОЗА УПАЛА НА ЛАПУ АЗОРА";
  8. $result = 'Это палиндром';
  9. $resultN = "Это не палиндром";
  10.  
  11. $text = mb_strtolower($text);
  12. $text = str_replace(' ', '', $text);
  13.  
  14. $length = mb_strlen($text);
  15. $halfLength = floor($length/ 2);
  16.  
  17. for ($i = 1; $i <= $halfLength; $i++)  {
  18. 	$symbol = mb_substr($text, $i-1, 1);
  19. 	$symbolRev = mb_substr($text, -$i, 1);
  20.  
  21. 	if ($symbol == $symbolRev) {
  22.    echo "$symbol\n";
  23.  
  24. } if ($i == $halfLength) {
  25.    echo $result;
  26.    break;
  27. } elseif ($symbol != $symbolRev) {
  28. 	echo "$resultN";
  29. 	break;
  30. }
  31. }
Success #stdin #stdout 0.02s 52432KB
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а
р
о
з
а
у
п
а
л
а
Это палиндром
https://ideone.com/audvNJ
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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