* @package WooCommerce\Interface
* Functions that must be defined to implement an action/job/event queue.
interface WC_Queue_Interface {
* Enqueue an action to run one time, as soon as possible
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
* @return int The action ID
public function add( $hook, $args = array(), $group = '' );
* Schedule an action to run once at some time in the future
* @param int $timestamp When the job will run.
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
* @return int The action ID
public function schedule_single( $timestamp, $hook, $args = array(), $group = '' );
* Schedule a recurring action
* @param int $timestamp When the first instance of the job will run.
* @param int $interval_in_seconds How long to wait between runs.
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
* @return int The action ID
public function schedule_recurring( $timestamp, $interval_in_seconds, $hook, $args = array(), $group = '' );
* Schedule an action that recurs on a cron-like schedule.
* @param int $timestamp The schedule will start on or after this time.
* @param string $cron_schedule A cron-link schedule string.
* @see http://en.wikipedia.org/wiki/Cron
* | | | | | + year [optional]
* | | | | +----- day of week (0 - 7) (Sunday=0 or 7)
* | | | +---------- month (1 - 12)
* | | +--------------- day of month (1 - 31)
* | +-------------------- hour (0 - 23)
* +------------------------- min (0 - 59)
* @param string $hook The hook to trigger.
* @param array $args Arguments to pass when the hook triggers.
* @param string $group The group to assign this job to.
* @return int The action ID
public function schedule_cron( $timestamp, $cron_schedule, $hook, $args = array(), $group = '' );
* Dequeue the next scheduled instance of an action with a matching hook (and optionally matching args and group).
* Any recurring actions with a matching hook should also be cancelled, not just the next scheduled action.
* @param string $hook The hook that the job will trigger.
* @param array $args Args that would have been passed to the job.
* @param string $group The group the job is assigned to (if any).
public function cancel( $hook, $args = array(), $group = '' );
* Dequeue all actions with a matching hook (and optionally matching args and group) so no matching actions are ever run.
* @param string $hook The hook that the job will trigger.
* @param array $args Args that would have been passed to the job.
* @param string $group The group the job is assigned to (if any).
public function cancel_all( $hook, $args = array(), $group = '' );
* Get the date and time for the next scheduled occurrence of an action with a given hook
* (an optionally that matches certain args and group), if any.
* @param string $hook The hook that the job will trigger.
* @param array $args Filter to a hook with matching args that will be passed to the job when it runs.
* @param string $group Filter to only actions assigned to a specific group.
* @return WC_DateTime|null The date and time for the next occurrence, or null if there is no pending, scheduled action for the given hook
public function get_next( $hook, $args = null, $group = '' );
* Find scheduled actions.
* @param array $args Possible arguments, with their default values.
* 'hook' => '' - the name of the action that will be triggered.
* 'args' => null - the args array that will be passed with the action.
* 'date' => null - the scheduled date of the action. Expects a DateTime object, a unix timestamp, or a string that can parsed with strtotime(). Used in UTC timezone.
* 'date_compare' => '<=' - operator for testing "date". accepted values are '!=', '>', '>=', '<', '<=', '='.
* 'modified' => null - the date the action was last updated. Expects a DateTime object, a unix timestamp, or a string that can parsed with strtotime(). Used in UTC timezone.
* 'modified_compare' => '<=' - operator for testing "modified". accepted values are '!=', '>', '>=', '<', '<=', '='.
* 'group' => '' - the group the action belongs to.
* 'status' => '' - ActionScheduler_Store::STATUS_COMPLETE or ActionScheduler_Store::STATUS_PENDING.
* 'claimed' => null - TRUE to find claimed actions, FALSE to find unclaimed actions, a string to find a specific claim ID.
* 'per_page' => 5 - Number of results to return.
* 'orderby' => 'date' - accepted values are 'hook', 'group', 'modified', or 'date'.
* @param string $return_format OBJECT, ARRAY_A, or ids.
public function search( $args = array(), $return_format = OBJECT );
It is recommended that you Edit text format, this type of Fix handles quite a lot in one request
