<?php
error_reporting(-1);
mb_internal_encoding('utf-8');
 
$text = <<<EOF
Это - хорошо
EOF;
 
$text = mb_strtolower($text);
$words = [];
$wordFounder = "/[\p{L}\-\_]+/ui";
$count = preg_match_all($wordFounder, $text, $pregResult);
$result = [];
$words = $pregResult[0];
$result = array_count_values($words);
arsort($result);
 
echo "Всего слов в тексте - $count.\n";
 
foreach ($result as $word => $count) {
	echo "$word - встречается $count раз.\n";
}
 
 

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