<?php
$text = "Сеньор-помидор пишет безошибочный код";
$result = "палиндром";
$halfLength = floor($length / 2);
for ($i = 0; $i <= $halfLength; $i++) {
if ($letters[$length - $i + 1] == $letters[$i])
continue;
else $result = "Не палиндром";
}
echo $result;
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