function do_shortcode($content, $ignore_html = false)
{
    global $shortcode_tags;
    if (false === strpos($content, '[')) {
        return $content;
    }
    if (empty($shortcode_tags) || !is_array($shortcode_tags)) {
        return $content;
    }
    // Find all registered tag names in $content.
    preg_match_all('@\\[([^<>&/\\[\\]\\x00-\\x20]++)@', $content, $matches);
    $tagnames = array_intersect(array_keys($shortcode_tags), $matches[1]);
    if (empty($tagnames)) {
        return $content;
    }
    $content = do_shortcodes_in_html_tags($content, $ignore_html, $tagnames);
    $pattern = get_shortcode_regex($tagnames);
    $content = preg_replace_callback("/{$pattern}/", 'do_shortcode_tag', $content);
    // Always restore square braces so we don't break things like <!--[if IE ]>
    $content = unescape_invalid_shortcodes($content);
    return $content;
}

/**
 * Remove all shortcode tags from the given content.
 *
 * @since 2.5
 * @uses $shortcode_tags
 *
 * @param string $content Content to remove shortcode tags.
 * @return string Content without shortcode tags.
 */
function strip_shortcodes( $content ) {
	global $shortcode_tags;

	if (empty($shortcode_tags) || !is_array($shortcode_tags))
		return $content;

	$content = do_shortcodes_in_html_tags( $content, true );

	$pattern = get_shortcode_regex();
	$content = preg_replace_callback( "/$pattern/s", 'strip_shortcode_tag', $content );

	// Always restore square braces so we don't break things like <!--[if IE ]>
	$content = unescape_invalid_shortcodes( $content );
	
	return $content;
}

/**
 * Remove all shortcode tags from the given content.
 *
 * @since 2.5.0
 *
 * @global array $shortcode_tags
 *
 * @param string $content Content to remove shortcode tags.
 * @return string Content without shortcode tags.
 */
function strip_shortcodes($content)
{
    global $shortcode_tags;
    if (false === strpos($content, '[')) {
        return $content;
    }
    if (empty($shortcode_tags) || !is_array($shortcode_tags)) {
        return $content;
    }
    // Find all registered tag names in $content.
    preg_match_all('@\\[([^<>&/\\[\\]\\x00-\\x20=]++)@', $content, $matches);
    $tags_to_remove = array_keys($shortcode_tags);
    /**
     * Filters the list of shortcode tags to remove from the content.
     *
     * @since 4.7.0
     *
     * @param array  $tag_array Array of shortcode tags to remove.
     * @param string $content   Content shortcodes are being removed from.
     */
    $tags_to_remove = apply_filters('strip_shortcodes_tagnames', $tags_to_remove, $content);
    $tagnames = array_intersect($tags_to_remove, $matches[1]);
    if (empty($tagnames)) {
        return $content;
    }
    $content = do_shortcodes_in_html_tags($content, true, $tagnames);
    $pattern = get_shortcode_regex($tagnames);
    $content = preg_replace_callback("/{$pattern}/", 'strip_shortcode_tag', $content);
    // Always restore square braces so we don't break things like <!--[if IE ]>
    $content = unescape_invalid_shortcodes($content);
    return $content;
}