Tidy is a quite powerful program which main purpose is to fix errors in HTML documents. TidyLib is a library version of Tidy written in C and by reason of easy C linkage, it can be used from within nearly any programming language, including PHP. The common way to invoke Tidy functions from PHP is to use the Tidy extension, which can be easily enabled. Tidy extension has dual (both procedural and object-oriented) nature and from now on we’ll focus on the latter.
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