Is especially effective if there is a large database of needles (=strings to be searched, for example virus signatures). Another advantage is that built search structure is initialized before search in separate call thus it can be called more times with different haystack, saving time.
Computing Aho-Corasick in th native code (PHP extension) rather than in a pure PHP manner gives this implementation significant performance boost.
Package built for PHP 8.3 as Software Collection (php83 by remi).