title: Detecting if something exists and then automating process
body: <p>I was wondering if it would be possible to write a script in PHP which would proceed through an extremely large data set (100 million+) to try locate specific strings within the data set?</p>
  
  <p>If it is feasibly possible would it be an efficient form of identifying a keyword within the dataset?</p>
  
  <p>If there is a better way of processing through such a large dataset to try an detect a string I am all ears </p>