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  1. <?php
  2. error_reporting(-1);
  3. mb_internal_encoding('utf-8');
  4. $text       = "А роза упала, подскочила, перевернулась и снова упала на лапу Азора";
  5. $text       = mb_strtolower($text);
  6. $text       = str_replace(" ", "", $text);
  7. $length     = mb_strlen($text);
  8. $halfLength = floor($length / 2);
  9. for ($i = 0; $i <= $halfLength; $i++) {
  10.     $length--;
  11.     $firstLetter = mb_substr($text, $i, 1);
  12.     $lastLetter  = mb_substr($text, $length, 1);
  13.     if ($firstLetter != $lastLetter) {
  14.         $palindrome = false;
  15.         break;
  16.     } else{$palindrome = true;}
  17.  
  18. }
  19. if ($palindrome = false) {
  20. 	echo "Это не палиндром.";
  21. }else {echo "Это  палиндром.";}
Success #stdin #stdout 0.02s 52432KB
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Это  палиндром.
https://ideone.com/HuI7Zi
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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