looking for light weight tool/API/script(in PHP) to validate whether a html code snip

[asacool]

I am looking for light weight tool/API/script(in PHP) to validate whether a html code sippet is 'tidy'.By 'tidy' I simply mean whether the html snippet has properly closed tags and is valid html.

the tools that are usually ailable are generally for validating a url html. I wnat to be able to validate only a small html snippet . e.g

<a href="xyz.com" Click Here </a>

the above is invalid as the

<a>

tag does not close properly
where as

<span> my name is xyz</span>

is valid .

What would be the best way to validate html snippets? Thanks in advance for your help.

[GOPalmer]

You might want to take a look at http://php.net/manual/en/book.tidy.php

Best Regards, George

[Alan22]

You can find a source code of the official validator.w3.org validator at http://validator.w3.org/source/ It is not written in PHP, but might give you some ideas.