Stop PHP from echoing specific tags (but still echo others) : <p>I've been wondering if it's possible to "blacklist" specific HTML tags from printing (but <em>still</em> allow other tags to echo, so not strip_tags).</p>

<p>So basically, if I wanted to block the <code>h1</code> tag, instead of:</p>

<h1>Hello World</h1>

<p>My code would echo out:</p>

<pre><code>&lt;h1&gt;Hello World&lt;/h1&gt;
</code></pre>

<p>Any of you guys know if it's possible, and if it is, what should I do to achieve this?</p>
