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do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 437 | * For plugins replacing wp-cron, return the number of events successfully |
| 438 | * unscheduled (zero if no events were registered with the hook) or false |
| 439 | * if unscheduling one or more events fails. |
| 440 | * |
| 441 | * @since 5.1.0 |
| 442 | * |
| 443 | * @param null|array $pre Value to return instead. Default null to continue unscheduling the hook. |
| 444 | * @param string $hook Action hook, the execution of which will be unscheduled. |
| 445 | */ |
| 446 | $pre = apply_filters( 'pre_unschedule_hook', null, $hook ); |
| 447 | if ( null !== $pre ) { |
| 448 | return $pre; |
| 449 | } |
| 450 | |
| 451 | $crons = _get_cron_array(); |
| 452 | if ( empty( $crons ) ) { |
| 453 | return 0; |
| 454 | } |
| 455 | |