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  1. <?php
  2.  
  3. // палиндром
  4.  
  5. error_reporting(-1);
  6. mb_internal_encoding('utf-8');
  7.  
  8. $text = 'А роза упала на лапу Азора';
  9. $result = 'палиндром';
  10.  
  11. $text = mb_strtolower($text);
  12. $text = str_replace(" ", "", $text);
  13.  
  14.  
  15. $length = mb_strlen($text);
  16. $halfLength = floor($length / 2);
  17.  
  18. for ($i = 0; $i <= $halfLength; $i++) {
  19. 	$firstSymbol = mb_substr($text,$i,1);
  20. 	$lastSymbol = mb_substr($text,-($i+1),1);
  21. 	if ($firstSymbol != $lastSymbol) {
  22. 		$result = 'Не палиндром';
  23. 		break;
  24. 	}
  25. }
  26.  
  27. echo "Результат: {$result}\n";
  28.  
Success #stdin #stdout 0.02s 52472KB
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Результат: палиндром
https://ideone.com/7g3WwD
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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