(PECL ssdeep >= 1.0.0)
ssdeep_fuzzy_hash_filename — Create a fuzzy hash from a file
ssdeep_fuzzy_hash_filename ( string $file_name ) : string
ssdeep_fuzzy_hash_filename() calculates the hash of the file specified by file_name using » context-triggered piecewise hashing, and returns that hash.
file_name
The filename of the file to hash.
Returns a string on success, false otherwise.
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https://www.php.net/manual/en/function.ssdeep-fuzzy-hash-filename.php