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The best way to understand what a hook does is to look at where it occurs in the source code.
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 |
|---|---|
| 400 | 'daily' => array( 'interval' => DAY_IN_SECONDS, 'display' => __( 'Once Daily' ) ), |
| 401 | ); |
| 402 | /** |
| 403 | * Filters the non-default cron schedules. |
| 404 | * |
| 405 | * @since 2.1.0 |
| 406 | * |
| 407 | * @param array $new_schedules An array of non-default cron schedules. Default empty. |
| 408 | */ |
| 409 | return array_merge( apply_filters( 'cron_schedules', array() ), $schedules ); |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Retrieve Cron schedule for hook with arguments. |
| 414 | * |
| 415 | * @since 2.1.0 |
| 416 | * |
| 417 | * @param string $hook Action hook to execute when cron is run. |
| 418 | * @param array $args Optional. Arguments to pass to the hook's callback function. |