Adds an oEmbed provider.

Removes an oEmbed provider.

Takes a URL and returns the corresponding oEmbed provider’s URL, if there is one.

Displays the plugin install table.

Return a list of slugs of installed plugins, if known.

Make private/protected methods readable for backward compatibility.

Make private properties readable for backward compatibility.

Make private properties checkable for backward compatibility.

Parse an ‘order’ query variable and cast it to ASC or DESC as necessary.

Converts the given orderby alias (if allowed) to a properly-prefixed value.