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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_internal_encoding('UTF-8');
  5.  
  6. $text = "А роза упала на лапу Азора";
  7. $result = "палиндром";
  8.  
  9. $text = mb_strtolower($text);
  10. $length = mb_strlen($text);
  11. $textWithoutSpaces = str_replace(" ", "", $text);
  12.  
  13. $length = mb_strlen($textWithoutSpaces);
  14. $halfLength = floor($length/2);
  15.  
  16. for ($i = 0; $i < $halfLength; ++$i) {
  17. 	$charOne = mb_substr($textWithoutSpaces, $i, 1);
  18. 	$charTwo = mb_substr($textWithoutSpaces, -($i + 1), 1);
  19.  
  20. 	if ($charOne != $charTwo) {
  21. 		$result = "это не палиндром";
  22. 		break;
  23. 	}
  24. }
  25.  
  26. echo $result;
Success #stdin #stdout 0.01s 20520KB
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палиндром
https://ideone.com/IhBSXJ
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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