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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 |
---|---|
309 | * |
310 | * @return array |
311 | */ |
312 | function wp_get_schedules() { |
313 | $schedules = array( |
314 | 'hourly' => array( 'interval' => 3600, 'display' => __('Once Hourly') ), |
315 | 'twicedaily' => array( 'interval' => 43200, 'display' => __('Twice Daily') ), |
316 | 'daily' => array( 'interval' => 86400, 'display' => __('Once Daily') ), |
317 | ); |
318 | return array_merge( apply_filters( 'cron_schedules', array() ), $schedules ); |
319 | } |
320 |
|
321 | /** |
322 | * Retrieve Cron schedule for hook with arguments. |
323 | * |
324 | * @since 2.1.0 |
325 | * |
326 | * @param string $hook Action hook to execute when cron is run. |
327 | * @param array $args Optional. Arguments to pass to the hook's callback function. |