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im using php to create a sorta rss aggregator that stores data from multiple site rss feeds into a mysql database. since articles could be duplicated on many websites, i want to avoid this. ive been told you could use hashing to make unique hashes based on content of rss[description + title]. Now which hashing algorithm is fastest and produces less characters that i can use for comparison to avoid duplicates.
Thanx in advance
sprintf(‘%u’,crc32()) produces 4,294,967,296 combinations, and it’s shorter than md5 or sha1. it’s only 32 bits wide.