How to Effectively Remove HTML Special Characters from RSS Feeds?

Stripping HTML Special Characters from RSS Feed

When creating RSS feed files, removing HTML tags using PHP's strip_tags function is common practice. However, this function often fails to remove HTML special code characters like , &, and ©.

To effectively remove these characters, consider the following options:

Option 1: Using html_entity_decode

You can use html_entity_decode to decode these characters back to their original forms.

<code class="php">$decodedContent = html_entity_decode($originalContent);</code>

Option 2: Using preg_replace

Alternatively, you can use preg_replace with a regular expression to remove the characters directly:

<code class="php">$cleanContent = preg_replace("/&amp;#?[a-z0-9]+;/i","",$originalContent);</code>

This pattern matches HTML special characters represented as numeric entities (  for example) or named entities ( ).

Alternative Pattern

To improve the accuracy of the replacement, consider using the following modified pattern, as suggested by Jacco:

<code class="php">$cleanContent = preg_replace("/&amp;#?[a-z0-9]{2,8};/i","",$originalContent);</code>

This pattern limits the replacement to entities with 2 to 8 characters, reducing the risk of unintended replacements.

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