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  1. <?php
  2. error_reporting(-1);
  3. mb_internal_encoding('utf-8');
  4.  
  5. $text = "А роза упала на лапу Азора";
  6. $noSpaces = mb_strtolower(str_replace(" ", "", $text));
  7. $halfLength = floor((mb_strlen($noSpaces)) / 2);
  8. $checkCount = 0;
  9.  
  10. for ($i = 1; $i <= $halfLength; $i++) {
  11.     $leftSide = mb_substr($noSpaces, $i - 1, 1);
  12.     $rightSide = mb_substr($noSpaces, $i * (-1), 1);
  13.     if ($leftSide == $rightSide) {
  14.         $checkCount++;
  15.     }
  16. }
  17. if ($checkCount == $halfLength) {
  18.     echo "Palindrome";
  19. } else {
  20.     echo "Not a palindrome";
  21. }
  22.  
Success #stdin #stdout 0.02s 24460KB
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stdin
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Standard input is empty
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Palindrome
https://ideone.com/8cCMlL
palindrome
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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