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I am looking for a PHP class to return data scraped from 3 web sources:
The first is the primary source.
The second and third are backup data sources (if data cannot be scraped from the first source).
Total of 22 data values should be scraped.
If the data already exists in the database, then no action is taken. If the data does not exist in my database, a new entry is made.
User agent should be Google bot or similar.