<?php
error_reporting(-1);
mb_internal_encoding('utf-8');
 
$text = "А роза упала на лапу Азора";
$result = 'палиндром';
 
$text = mb_strtolower($text);
$text = str_replace(' ', '', $text);
 
$length = mb_strlen($text);
$halfLength = floor($length / 2); 
 
 
for ($i = 0; $i < $halfLength; $i++) {
$first = mb_substr($text, $i, 1);
$last = mb_substr($text, $length - 1 - $i, 1);
 
if ($first !== $last) {
$result = 'не палиндром';
break; 
}
}
 
echo "Результат: {$result}\n";

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