<?php
 
error_reporting(-1);
mb_internal_encoding('utf-8');
 
$text = "А роза упала на лапу Азора";
/* $text = "Я иду с мечем судия";*/
 
$text = str_replace(" ", "", $text);
$text = mb_strtolower($text);
 
for ($i = 0; $i <= mb_strlen($text); $i++) {
    $symbol1 = mb_substr($text, $i, 1);
    $symbol2 = mb_substr($text, -$i, 1);
    if ($symbol1 <> $symbol2) {
        echo "Это не палиндром\n";
        $fake = true;
        break;
    }
} 
 
if ($fake <> true) {
    echo "Это палиндром\n";
}
 

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