How to Identify Duplicate and Similar Text in Php

It’s not a common problem but sometimes you have to check if 2 texts are similar. If you have to aggregate data from multiple sources you might know what I’m talking about.

The most simple thing you can try is to simply compare the 2 strings. A simple comparison will not help if one of the strings are contains an extra space. A more serious algorithm should be used for such cases. Fortunately php provides us several functions that can be used.
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