Should not remove server and/or templating tags

[srcspider]

Given the following,

<p>Hello, <?php echo $name  ?></p>

It makes no sense to strip out the <?php ... ?> part.

This applies to other template styles, such as <% ... %> or shorthand styles <?= ... ?>.

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Simplest solution to this would probably to have tag suffice/prefix pair exclusion rules.
eg. [ ['<%', '%>'], [ '<?', '?>' ] ...

[mlegenhausen]

The problem is I need to strip out all content that is not usable for a text representation. This includes PHP tags which would normally interpreted by your PHP engine. I would suggest to escape all php tags, cause you want them to be displayed instead of interpreted.

[srcspider]

I actually want them to be interpreted.