PHP - Strip HTML tags and content from a string

strip_tags_and_content.php

<?php
/**
 * A script for removing a set of HTML tags and their content.
 * This example strips all style tags and CSS inside them.
 * $content is assumed to contain some HTML.
 * To extend this, change or add tags to the $unwanted array.
 */

$unwanted = [
    'style',
];
foreach ( $unwanted as $tag ) {
    $content = preg_replace( "/(<$tag>.*?<\/$tag>)/is", '', $content );
}
unset( $tag );