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  1. <?php
  2.  
  3. error_reporting(-1);
  4. mb_check_encoding('utf-8');
  5. header("Content-Type: text/plain; charset=utf-8");
  6.  
  7. $text = 'А муза рада музе без ума да разума';
  8.  
  9. $textUpper = mb_strtoupper($text);
  10. $textWithoutSpace = str_replace(" ", "", $textUpper);
  11. $lengthStr = mb_strlen($textWithoutSpace);
  12. $lengthStr--;
  13. $saveLenght = $lengthStr;
  14. $check = 0;
  15.  
  16. for ($i = 0; $i <= $saveLenght; $i ++) {
  17.     $firstSymbol = mb_substr($textWithoutSpace, $i, 1);
  18.     $lastSymbol = mb_substr($textWithoutSpace, $lengthStr, 1);
  19.     $lengthStr --;
  20.     if ($firstSymbol == $lastSymbol) {
  21.         $check ++;
  22.     }
  23. }
  24.  
  25. $saveLenght ++;
  26.  
  27. echo "Исходный текст: {$text}. \n";
  28.  
  29. if ($check == $saveLenght) {
  30.     echo 'Палиндром';
  31. } else {
  32.     echo 'Не Палиндром';
  33. }
Success #stdin #stdout 0.02s 24448KB
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Исходный текст: А муза рада музе без ума да разума. 
Палиндром
https://ideone.com/KywbpS
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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