<?php function count_words(string $string): int { return preg_match_all('/\b(?:[^\W\d_]|-)+\b/u', $string, $matches) ? count($matches[0]) : 0; } echo count_words(' - - - - - - - '), PHP_EOL; // 0 echo count_words('hello world'), PHP_EOL; // 2 echo count_words('hoho hé-hé haha'), PHP_EOL; // 3 echo count_words('hello 123'), PHP_EOL; // 1
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