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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_internal_encoding('utf-8');
  5.  
  6. $text = "А РоЗа УпаЛ      а  нА Ла пу Азо ра";
  7. $result = 'палиндром';
  8. $length = mb_strlen($text);
  9. $k=0;
  10. $low = mb_strtolower($text);
  11. $res;
  12. $n_text = str_replace(" ","", $low);
  13.  
  14. $halfLength = floor($length/2);
  15. $length_n = mb_strlen($n_text);
  16.  
  17. for($i=0;$i<$halfLength;$i++) {
  18. 	$res = $length_n-$i-1;
  19. 	if (mb_substr($n_text,$i,1)==mb_substr($n_text,$res,1)) {
  20. 		$k=$k+1;
  21. 	} else {
  22. 		$k=0;
  23. 	}
  24. }
  25.  
  26.  
  27.  
  28. if ($k==$halfLength) {
  29. 	echo $result;
  30. } else {
  31. 	echo "Нет!";
  32. }
Success #stdin #stdout 0.02s 24448KB
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палиндром
https://ideone.com/Ac42um
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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