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62 lines
2.1 KiB
Plaintext
62 lines
2.1 KiB
Plaintext
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Install
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How to install HTMLPurifier
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Being a library, there's no fancy GUI that will take you step-by-step through
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configuring database credentials and other mumbo-jumbo. HTMLPurifier is
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designed to run "out of the box." Regardless, there are still a couple of
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things you should be mindful of.
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1. Including the proper files
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The library/ directory must be added to your path: HTMLPurifier will not be
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able to find the necessary includes otherwise. This is as simple as:
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set_include_path('/path/to/htmlpurifier/library' . PATH_SEPARATOR . get_include_path());
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...replacing /path/to/htmlpurifier with the actual location of the folder. Don't
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worry, HTMLPurifier is namespaced so unless you have another file named
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HTMLPurifier.php, the files won't collide with any of your includes.
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Then, it's a simple matter of including the base file:
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require_once 'HTMLPurifier.php';
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...and you're good to go.
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2. Preparing the proper environment
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While no configuration is necessary, you first should take precautions regarding
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the other output HTML that the filtered content will be going along with. Here
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is a (short) checklist:
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* Have I specified XHTML 1.0 Transitional as the doctype?
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* Have I specified UTF-8 as the character encoding?
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I cannot stress the importance of these two bullets enough. Omitting either
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of them could have dire consequences not only for security but for plain
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old usability. You can find a more in-depth discussion of why this is needed
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in docs/security.txt, in the meantime, try to change your output so this is
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the case.
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If, for some reason, you are unable to switch to UTF-8 immediately, you can
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use iconv to convert the output of HTMLPurifier to your desired encoding.
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We may integrate support for other encodings in later releases, but for now,
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UTF-8 is all you should need. (If you're not using UTF-8, switch now!)
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3. Using the code
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The interface is mind-numbingly simple.
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$purifier = new HTMLPurifier();
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$clean_html = $purifier->purify($dirty_html);
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That's it. For more examples, check out docs/examples/. Also, SLOW gives
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advice on what to do if HTMLPurifier is slowing down your application.
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