<?php
 
error_reporting(-1);
mb_internal_encoding('utf-8');
$text1 = "Аа роза упала на лапу Азора";
$text2 = mb_strtolower($text1);
$text3 = str_replace(" ", "", $text2);
$coral = mb_strlen($text3);
$ccoral=floor($coral/ 2);
 
for ($i = 0; $i <= $ccoral; $i++ ){
	$a = mb_substr($text3, $i, 1);
    $b = mb_substr($text3, -$i, 1);
 
if ($a == $b) {
	echo "Все сходится [$a $b] \n";
} else { echo "Ничего не сходится [$a $b] \n";
}
}

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