Located in classes/ActionScheduler_Versions.php.

Tracks registered versions of Action Scheduler and their initialization callbacks, and exposes information about the active source.

Public Methods

register( $version_string, $initialization_callback )

Register a version and its initialization callback.

• Parameters:
  • $version_string (string)
  • $initialization_callback (callable)
• Returns: bool false if that version is already registered.

Notes:

• Records the file path for the caller via debug_backtrace() to track sources.

get_versions()

Return all registered versions.

• Returns: array<string, callable>

get_sources()

Return the set of registered sources mapped to version strings.

• Returns: array<string, string>
• Since: 3.9.1

latest_version()

Return the latest registered version string.

• Returns: string|false

latest_version_callback()

Return the initialization callback for the latest registered version.

• Returns: callable|string ('__return_null' if no versions are registered)

instance()

Return the singleton instance.

• Returns: ActionScheduler_Versions

initialize_latest_version()

Initialize the latest registered version by calling its callback.

• Returns: void

active_source()

Return information about the plugin or theme that contains the active Action Scheduler version.

• Returns: array
• Deprecated: 3.9.2 (use ActionScheduler_SystemInformation::active_source())

active_source_path()

Return the directory path for the active Action Scheduler source.

• Returns: string
• Deprecated: 3.9.2 (use ActionScheduler_SystemInformation::active_source_path())