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do_shortcode › WordPress Function

Since2.5.0
Deprecatedn/a
› do_shortcode ( $content, $ignore_html = false )
Parameters: (2)
  • (string) $content Content to search for shortcodes.
    Required: Yes
  • (bool) $ignore_html When true, shortcodes inside HTML elements will be skipped. Default false.
    Required: No
    Default: false
Returns:
  • (string) Content with shortcodes filtered out.
Defined at:
Codex:

Searches content for shortcodes and filter shortcodes through their hooks.

If there are no shortcode tags defined, then the content will be returned without any filtering. This might cause issues when plugins are disabled but the shortcode will still show up in the post or content.


Related Functions: add_shortcode, do_shortcode_tag, wp_video_shortcode, wp_audio_shortcode, has_shortcode

Source 

function do_shortcode( $content, $ignore_html = false ) {
	global $shortcode_tags;

	if ( ! str_contains( $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;
	}

	// Ensure this context is only added once if shortcodes are nested.
	$has_filter   = has_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' );
	$filter_added = false;

	if ( ! $has_filter ) {
		$filter_added = add_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' );
	}

	$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 );

	// Only remove the filter if it was added in this scope.
	if ( $filter_added ) {
		remove_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' );
	}

	return $content;
}