* WordPress site, if the schedule time has passed.
*
* @since 2.1.0
- * @link http://codex.wordpress.org/Function_Reference/wp_schedule_single_event
+ * @link https://codex.wordpress.org/Function_Reference/wp_schedule_single_event
*
* @param int $timestamp Timestamp for when to run the event.
* @param string $hook Action hook to execute when cron is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
*/
function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
- // don't schedule a duplicate if there's already an identical event due in the next 10 minutes
+ // don't schedule a duplicate if there's already an identical event due within 10 minutes of it
$next = wp_next_scheduled($hook, $args);
- if ( $next && $next <= $timestamp + 10 * MINUTE_IN_SECONDS )
+ if ( $next && abs( $next - $timestamp ) <= 10 * MINUTE_IN_SECONDS ) {
return;
+ }
$crons = _get_cron_array();
$event = (object) array( 'hook' => $hook, 'timestamp' => $timestamp, 'schedule' => false, 'args' => $args );
- $event = apply_filters('schedule_event', $event);
+ /**
+ * Filter a single event before it is scheduled.
+ *
+ * @since 3.1.0
+ *
+ * @param object $event An object containing an event's data.
+ */
+ $event = apply_filters( 'schedule_event', $event );
// A plugin disallowed this event
if ( ! $event )
* @param string $recurrence How often the event should recur.
* @param string $hook Action hook to execute when cron is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
- * @return bool|null False on failure, null when complete with scheduling event.
+ * @return false|null False on failure, null when complete with scheduling event.
*/
function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
$crons = _get_cron_array();
return false;
$event = (object) array( 'hook' => $hook, 'timestamp' => $timestamp, 'schedule' => $recurrence, 'args' => $args, 'interval' => $schedules[$recurrence]['interval'] );
- $event = apply_filters('schedule_event', $event);
+ /** This filter is documented in wp-includes/cron.php */
+ $event = apply_filters( 'schedule_event', $event );
// A plugin disallowed this event
if ( ! $event )
* @param string $recurrence How often the event should recur.
* @param string $hook Action hook to execute when cron is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
- * @return bool|null False on failure. Null when event is rescheduled.
+ * @return false|null False on failure. Null when event is rescheduled.
*/
-function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array()) {
+function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() ) {
$crons = _get_cron_array();
$schedules = wp_get_schedules();
- $key = md5(serialize($args));
+ $key = md5( serialize( $args ) );
$interval = 0;
// First we try to get it from the schedule
- if ( 0 == $interval )
- $interval = $schedules[$recurrence]['interval'];
+ if ( isset( $schedules[ $recurrence ] ) ) {
+ $interval = $schedules[ $recurrence ]['interval'];
+ }
// Now we try to get it from the saved interval in case the schedule disappears
- if ( 0 == $interval )
- $interval = $crons[$timestamp][$hook][$key]['interval'];
+ if ( 0 == $interval ) {
+ $interval = $crons[ $timestamp ][ $hook ][ $key ]['interval'];
+ }
// Now we assume something is wrong and fail to schedule
- if ( 0 == $interval )
+ if ( 0 == $interval ) {
return false;
+ }
$now = time();
- if ( $timestamp >= $now )
+ if ( $timestamp >= $now ) {
$timestamp = $now + $interval;
- else
- $timestamp = $now + ($interval - (($now - $timestamp) % $interval));
+ } else {
+ $timestamp = $now + ( $interval - ( ( $now - $timestamp ) % $interval ) );
+ }
wp_schedule_event( $timestamp, $recurrence, $hook, $args );
}
$args = array_slice( func_get_args(), 1 );
}
- while ( $timestamp = wp_next_scheduled( $hook, $args ) )
- wp_unschedule_event( $timestamp, $hook, $args );
+ // This logic duplicates wp_next_scheduled()
+ // It's required due to a scenario where wp_unschedule_event() fails due to update_option() failing,
+ // and, wp_next_scheduled() returns the same schedule in an infinite loop.
+ $crons = _get_cron_array();
+ if ( empty( $crons ) )
+ return;
+
+ $key = md5( serialize( $args ) );
+ foreach ( $crons as $timestamp => $cron ) {
+ if ( isset( $cron[ $hook ][ $key ] ) ) {
+ wp_unschedule_event( $timestamp, $hook, $args );
+ }
+ }
}
/**
if ( isset($keys[0]) && $keys[0] > $gmt_time )
return;
- if ( defined('ALTERNATE_WP_CRON') && ALTERNATE_WP_CRON ) {
- if ( !empty($_POST) || defined('DOING_AJAX') )
+ if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) {
+ if ( ! empty( $_POST ) || defined( 'DOING_AJAX' ) || defined( 'XMLRPC_REQUEST' ) ) {
return;
+ }
$doing_wp_cron = sprintf( '%.22F', $gmt_time );
set_transient( 'doing_cron', $doing_wp_cron );
$doing_wp_cron = sprintf( '%.22F', $gmt_time );
set_transient( 'doing_cron', $doing_wp_cron );
+ /**
+ * Filter the cron request arguments.
+ *
+ * @since 3.5.0
+ *
+ * @param array $cron_request_array {
+ * An array of cron request URL arguments.
+ *
+ * @type string $url The cron request URL.
+ * @type int $key The 22 digit GMT microtime.
+ * @type array $args {
+ * An array of cron request arguments.
+ *
+ * @type int $timeout The request timeout in seconds. Default .01 seconds.
+ * @type bool $blocking Whether to set blocking for the request. Default false.
+ * @type bool $sslverify Whether SSL should be verified for the request. Default false.
+ * }
+ * }
+ */
$cron_request = apply_filters( 'cron_request', array(
- 'url' => site_url( 'wp-cron.php?doing_wp_cron=' . $doing_wp_cron ),
- 'key' => $doing_wp_cron,
- 'args' => array( 'timeout' => 0.01, 'blocking' => false, 'sslverify' => apply_filters( 'https_local_ssl_verify', true ) )
+ 'url' => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ),
+ 'key' => $doing_wp_cron,
+ 'args' => array(
+ 'timeout' => 0.01,
+ 'blocking' => false,
+ /** This filter is documented in wp-includes/class-http.php */
+ 'sslverify' => apply_filters( 'https_local_ssl_verify', false )
+ )
) );
wp_remote_post( $cron_request['url'], $cron_request['args'] );
* 60*60*24*7 or 604800. The value of 'interval' would then be 604800.
*
* The 'display' is the description. For the 'weekly' key, the 'display' would
- * be <code>__('Once Weekly')</code>.
+ * be `__( 'Once Weekly' )`.
*
* For your plugin, you will be passed an array. you can easily add your
* schedule by doing the following.
- * <code>
- * // filter parameter variable name is 'array'
- * $array['weekly'] = array(
- * 'interval' => 604800,
- * 'display' => __('Once Weekly')
- * );
- * </code>
+ *
+ * // Filter parameter variable name is 'array'.
+ * $array['weekly'] = array(
+ * 'interval' => 604800,
+ * 'display' => __( 'Once Weekly' )
+ * );
+ *
*
* @since 2.1.0
*
'twicedaily' => array( 'interval' => 12 * HOUR_IN_SECONDS, 'display' => __( 'Twice Daily' ) ),
'daily' => array( 'interval' => DAY_IN_SECONDS, 'display' => __( 'Once Daily' ) ),
);
+ /**
+ * Filter the non-default cron schedules.
+ *
+ * @since 2.1.0
+ *
+ * @param array $new_schedules An array of non-default cron schedules. Default empty.
+ */
return array_merge( apply_filters( 'cron_schedules', array() ), $schedules );
}
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