Automatically replace content in PRE tags by HTML Entities

Automatically replace content in PRE tags by HTML Entities

Just paste the following in your functions.php file. Once saved, all your content with <pre> and </pre> tags will be automatically replaced by html entities.

function pre_entities($matches) {
	return str_replace($matches[1],htmlentities($matches[1]),$matches[0]);
}
//to html entities;  assume content is in the "content" variable
$content = preg_replace_callback('/<pre.*?>(.*?)<\/pre>/imsu',pre_entities, $content);

Credits goes to David Walsh for this very cool tip!

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