Function: Get the next increment of a cached incremental value.

Function: Runs a callback or Closure taking care to detach and reattach a set of filters.

Function: Runs a callbacks while suspending, removing and re-adding, a filter or action.

Function: Gets the plugin version history for a given main class.

Function: Validation of Null or Numerical values for Shortcode Attributes.

Function: Validation of Null or Truthy values for Shortcode Attributes.

Function: Returns a query var parsing an input URL.

Function: Checks if a plugin’s initially-installed version was prior to the passed version.

Function: Checks if a plugin’s initially-installed version was after the passed version.

Function: Checks if a plugin was installed at/on the passed version.