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Cron: clarify descriptions for Cron API functions. 

Props johnbillion.
Fixes #37769.

Built from https://develop.svn.wordpress.org/trunk@38357


git-svn-id: http://core.svn.wordpress.org/trunk@38298 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor 2016-08-26 09:22:30 +00:00
parent faccc617fb
commit 76926fa763
2 changed files with 45 additions and 36 deletions
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79
wp-includes/cron.php
View File

@ -1,28 +1,28 @@
<?php
/**
* WordPress CRON API
* WordPress Cron API
*
* @package WordPress
*/
/**
* Schedules a hook to run only once.
* Schedules an event to run only once.
*
* Schedules a hook which will be executed once by the WordPress actions core at
* Schedules an event which will execute once by the WordPress actions core at
* a time which you specify. The action will fire off when someone visits your
* WordPress site, if the schedule time has passed.
*
* Note that scheduling an event to occur within 10 minutes of an existing event
* with the same action hook will be ignored, unless you pass unique `$args` values
* with the same action hook will be ignored unless you pass unique `$args` values
* for each scheduled event.
*
* @since 2.1.0
* @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 int $timestamp Unix timestamp (UTC) for when to run the event.
* @param string $hook Action hook to execute when event is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
* @return false|void False when an event is not scheduled.
* @return false|void False if the event does not get scheduled.
*/
function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
// Make sure timestamp is a positive integer
@ -43,7 +43,14 @@ function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
*
* @since 3.1.0
*
* @param object $event An object containing an event's data.
* @param stdClass $event {
* An object containing an event's data.
*
* @type string $hook Action hook to execute when event is run.
* @type int $timestamp Unix timestamp (UTC) for when to run the event.
* @type string|false $schedule How often the event should recur. See `wp_get_schedules()`.
* @type array $args Arguments to pass to the hook's callback function.
* }
*/
$event = apply_filters( 'schedule_event', $event );
@ -59,24 +66,24 @@ function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
}
/**
* Schedule a periodic event.
* Schedule a recurring event.
*
* Schedules a hook which will be executed by the WordPress actions core on a
* specific interval, specified by you. The action will trigger when someone
* visits your WordPress site, if the scheduled time has passed.
*
* Valid values for the recurrence are hourly, daily and twicedaily. These can
* Valid values for the recurrence are hourly, daily, and twicedaily. These can
* be extended using the {@see 'cron_schedules'} filter in wp_get_schedules().
*
* Use wp_next_scheduled() to prevent duplicates
*
* @since 2.1.0
*
* @param int $timestamp Timestamp for when to run the event.
* @param int $timestamp Unix timestamp (UTC) for when to run the event.
* @param string $recurrence How often the event should recur.
* @param string $hook Action hook to execute when cron is run.
* @param string $hook Action hook to execute when event is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
* @return false|void False when an event is not scheduled.
* @return false|void False if the event does not get scheduled.
*/
function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
// Make sure timestamp is a positive integer
@ -110,11 +117,11 @@ function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
*
* @since 2.1.0
*
* @param int $timestamp Timestamp for when to run the event.
* @param int $timestamp Unix timestamp (UTC) for when to run the event.
* @param string $recurrence How often the event should recur.
* @param string $hook Action hook to execute when cron is run.
* @param string $hook Action hook to execute when event is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
* @return false|void False when an event is not scheduled.
* @return false|void False if the event does not get rescheduled.
*/
function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() ) {
// Make sure timestamp is a positive integer
@ -152,20 +159,20 @@ function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() )
}
/**
* Unschedule a previously scheduled cron job.
* Unschedule a previously scheduled event.
*
* The $timestamp and $hook parameters are required, so that the event can be
* The $timestamp and $hook parameters are required so that the event can be
* identified.
*
* @since 2.1.0
*
* @param int $timestamp Timestamp for when to run the event.
* @param int $timestamp Unix timestamp (UTC) for when to run the event.
* @param string $hook Action hook, the execution of which will be unscheduled.
* @param array $args Arguments to pass to the hook's callback function.
* Although not passed to a callback function, these arguments are used
* to uniquely identify the scheduled event, so they should be the same
* as those used when originally scheduling the event.
* @return false|void False when an event is not unscheduled.
* @return false|void False if the event does not get unscheduled.
*/
function wp_unschedule_event( $timestamp, $hook, $args = array() ) {
// Make sure timestamp is a positive integer
@ -184,12 +191,12 @@ function wp_unschedule_event( $timestamp, $hook, $args = array() ) {
}
/**
* Unschedule all cron jobs attached to a specific hook.
* Unschedule all events attached to the specified hook.
*
* @since 2.1.0
*
* @param string $hook Action hook, the execution of which will be unscheduled.
* @param array $args Optional. Arguments that were to be pass to the hook's callback function.
* @param array $args Optional. Arguments that were to be passed to the hook's callback function.
*/
function wp_clear_scheduled_hook( $hook, $args = array() ) {
// Backward compatibility
@ -215,13 +222,13 @@ function wp_clear_scheduled_hook( $hook, $args = array() ) {
}
/**
* Retrieve the next timestamp for a cron event.
* Retrieve the next timestamp for an event.
*
* @since 2.1.0
*
* @param string $hook Action hook to execute when cron is run.
* @param string $hook Action hook to execute when event is run.
* @param array $args Optional. Arguments to pass to the hook's callback function.
* @return false|int The UNIX timestamp of the next time the scheduled event will occur.
* @return false|int The Unix timestamp of the next time the scheduled event will occur.
*/
function wp_next_scheduled( $hook, $args = array() ) {
$crons = _get_cron_array();
@ -240,7 +247,7 @@ function wp_next_scheduled( $hook, $args = array() ) {
*
* @since 2.1.0
*
* @param int $gmt_time Optional. Unix timestamp. Default 0 (current time is used).
* @param int $gmt_time Optional. Unix timestamp (UTC). Default 0 (current time is used).
*/
function spawn_cron( $gmt_time = 0 ) {
if ( ! $gmt_time )
@ -250,7 +257,7 @@ function spawn_cron( $gmt_time = 0 ) {
return;
/*
* Get the cron lock, which is a unix timestamp of when the last cron was spawned
* Get the cron lock, which is a Unix timestamp of when the last cron was spawned
* and has not finished running.
*
* Multiple processes on multiple web servers can run this code concurrently,
@ -364,11 +371,11 @@ function wp_cron() {
}
/**
* Retrieve supported and filtered Cron recurrences.
* Retrieve supported event recurrence schedules.
*
* The supported recurrences are 'hourly' and 'daily'. A plugin may add more by
* hooking into the {@see 'cron_schedules'} filter. The filter accepts an array of
* arrays. The outer array has a key that is the name of the schedule or for
* The default supported recurrences are 'hourly', 'twicedaily', and 'daily'. A plugin may
* add more by hooking into the {@see 'cron_schedules'} filter. The filter accepts an array
* of arrays. The outer array has a key that is the name of the schedule or for
* example 'weekly'. The value is an array with two keys, one is 'interval' and
* the other is 'display'.
*
@ -410,13 +417,15 @@ function wp_get_schedules() {
}
/**
* Retrieve Cron schedule for hook with arguments.
* Retrieve the recurrence schedule for an event.
*
* @see wp_get_schedules() for available schedules.
*
* @since 2.1.0
*
* @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 string|false False, if no schedule. Schedule on success.
* @param string $hook Action hook to identify the event.
* @param array $args Optional. Arguments passed to the event's callback function.
* @return string|false False, if no schedule. Schedule name on success.
*/
function wp_get_schedule($hook, $args = array()) {
$crons = _get_cron_array();

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.7-alpha-38356';
$wp_version = '4.7-alpha-38357';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.