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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. $textWithoutSpaces = "";
  12.  
  13. for ($i = 0; $i < $length; ++$i) {
  14. 	$char = mb_substr($text, $i, 1);
  15. 	if ($char != ' ') {
  16. 		$textWithoutSpaces .= $char;		
  17. 	}	
  18. }
  19.  
  20. $length = mb_strlen($textWithoutSpaces);
  21. $halfLength = floor($length/2);
  22.  
  23. for ($i = 0; $i < $halfLength; ++$i) {
  24. 	$charOne = mb_substr($textWithoutSpaces, $i, 1);
  25. 	$charTwo = mb_substr($textWithoutSpaces, -($i + 1), 1);
  26.  
  27. 	if ($charOne != $charTwo) {
  28. 		$result = "это не палиндром";
  29. 		break;
  30. 	}
  31. }
  32.  
  33. echo $result;
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin 
Standard input is empty
stdout 
палиндром
https://ideone.com/2y7o1L
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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