<?php
 
error_reporting(-1);
mb_internal_encoding('utf-8');
 
$text = 'Аргентина манит негра';
 
$text_lower = mb_strtolower($text);
$codeTable = array(' ' => '');
$without_space = strtr($text_lower, $codeTable);
$result = "Pal";
 
$length = mb_strlen($text);
$half = floor($length / 2);
 
for ($i = 0; $i <= $half; $i++) {
	$one = mb_substr($without_space, $i, 1);
	$two = mb_substr($without_space, -$i-1, 1);
	if ($one != $two) {
		$result = 'Not pal';
		break;
	}
}
 
echo "$result";

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