
如何将PHP代码添加到WordPress文章或页面
wp_get_scheduled_event ( $hook, $args = array(), $timestamp = null )
wp_get_scheduled_event: 这个函数用来检索一个特定的计划事件的细节。它把事件的钩子名称作为参数,并返回一个包含事件信息的对象,如它的时间戳、重现率和参数。
检索一个预定的事件。
检索一个给定事件的完整事件对象,如果没有指定时间戳,则返回下一个预定事件。
function wp_get_scheduled_event( $hook, $args = array(), $timestamp = null ) { /** * Filter to preflight or hijack retrieving a scheduled event. * * Returning a non-null value will short-circuit the normal process, * returning the filtered value instead. * * Return false if the event does not exist, otherwise an event object * should be returned. * * @since 5.1.0 * * @param null|false|object $pre Value to return instead. Default null to continue retrieving the event. * @param string $hook Action hook of the event. * @param array $args Array containing each separate argument to pass to the hook's callback function. * Although not passed to a callback, these arguments are used to uniquely identify * the event. * @param int|null $timestamp Unix timestamp (UTC) of the event. Null to retrieve next scheduled event. */ $pre = apply_filters( 'pre_get_scheduled_event', null, $hook, $args, $timestamp ); if ( null !== $pre ) { return $pre; } if ( null !== $timestamp && ! is_numeric( $timestamp ) ) { return false; } $crons = _get_cron_array(); if ( empty( $crons ) ) { return false; } $key = md5( serialize( $args ) ); if ( ! $timestamp ) { // Get next event. $next = false; foreach ( $crons as $timestamp => $cron ) { if ( isset( $cron[ $hook ][ $key ] ) ) { $next = $timestamp; break; } } if ( ! $next ) { return false; } $timestamp = $next; } elseif ( ! isset( $crons[ $timestamp ][ $hook ][ $key ] ) ) { return false; } $event = (object) array( 'hook' => $hook, 'timestamp' => $timestamp, 'schedule' => $crons[ $timestamp ][ $hook ][ $key ]['schedule'], 'args' => $args, ); if ( isset( $crons[ $timestamp ][ $hook ][ $key ]['interval'] ) ) { $event->interval = $crons[ $timestamp ][ $hook ][ $key ]['interval']; } return $event; }