1 <?php |
1 <?php |
2 /** |
2 /** |
3 * WordPress CRON API |
3 * WordPress Cron API |
4 * |
4 * |
5 * @package WordPress |
5 * @package WordPress |
6 */ |
6 */ |
7 |
7 |
8 /** |
8 /** |
9 * Schedules a hook to run only once. |
9 * Schedules an event to run only once. |
10 * |
10 * |
11 * Schedules a hook which will be executed once by the WordPress actions core at |
11 * Schedules an event which will execute once by the WordPress actions core at |
12 * a time which you specify. The action will fire off when someone visits your |
12 * a time which you specify. The action will fire off when someone visits your |
13 * WordPress site, if the schedule time has passed. |
13 * WordPress site, if the schedule time has passed. |
14 * |
14 * |
|
15 * Note that scheduling an event to occur within 10 minutes of an existing event |
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16 * with the same action hook will be ignored unless you pass unique `$args` values |
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17 * for each scheduled event. |
|
18 * |
15 * @since 2.1.0 |
19 * @since 2.1.0 |
16 * @link https://codex.wordpress.org/Function_Reference/wp_schedule_single_event |
20 * @link https://codex.wordpress.org/Function_Reference/wp_schedule_single_event |
17 * |
21 * |
18 * @param int $timestamp Timestamp for when to run the event. |
22 * @param int $timestamp Unix timestamp (UTC) for when to run the event. |
19 * @param string $hook Action hook to execute when cron is run. |
23 * @param string $hook Action hook to execute when event is run. |
20 * @param array $args Optional. Arguments to pass to the hook's callback function. |
24 * @param array $args Optional. Arguments to pass to the hook's callback function. |
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25 * @return false|void False if the event does not get scheduled. |
21 */ |
26 */ |
22 function wp_schedule_single_event( $timestamp, $hook, $args = array()) { |
27 function wp_schedule_single_event( $timestamp, $hook, $args = array()) { |
23 // don't schedule a duplicate if there's already an identical event due within 10 minutes of it |
28 // Make sure timestamp is a positive integer |
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29 if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) { |
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30 return false; |
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31 } |
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32 |
|
33 // Don't schedule a duplicate if there's already an identical event due within 10 minutes of it |
24 $next = wp_next_scheduled($hook, $args); |
34 $next = wp_next_scheduled($hook, $args); |
25 if ( $next && abs( $next - $timestamp ) <= 10 * MINUTE_IN_SECONDS ) { |
35 if ( $next && abs( $next - $timestamp ) <= 10 * MINUTE_IN_SECONDS ) { |
26 return; |
36 return false; |
27 } |
37 } |
28 |
38 |
29 $crons = _get_cron_array(); |
39 $crons = _get_cron_array(); |
30 $event = (object) array( 'hook' => $hook, 'timestamp' => $timestamp, 'schedule' => false, 'args' => $args ); |
40 $event = (object) array( 'hook' => $hook, 'timestamp' => $timestamp, 'schedule' => false, 'args' => $args ); |
31 /** |
41 /** |
32 * Filter a single event before it is scheduled. |
42 * Filters a single event before it is scheduled. |
33 * |
43 * |
34 * @since 3.1.0 |
44 * @since 3.1.0 |
35 * |
45 * |
36 * @param object $event An object containing an event's data. |
46 * @param stdClass $event { |
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47 * An object containing an event's data. |
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48 * |
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49 * @type string $hook Action hook to execute when event is run. |
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50 * @type int $timestamp Unix timestamp (UTC) for when to run the event. |
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51 * @type string|false $schedule How often the event should recur. See `wp_get_schedules()`. |
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52 * @type array $args Arguments to pass to the hook's callback function. |
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53 * } |
37 */ |
54 */ |
38 $event = apply_filters( 'schedule_event', $event ); |
55 $event = apply_filters( 'schedule_event', $event ); |
39 |
56 |
40 // A plugin disallowed this event |
57 // A plugin disallowed this event |
41 if ( ! $event ) |
58 if ( ! $event ) |
47 uksort( $crons, "strnatcasecmp" ); |
64 uksort( $crons, "strnatcasecmp" ); |
48 _set_cron_array( $crons ); |
65 _set_cron_array( $crons ); |
49 } |
66 } |
50 |
67 |
51 /** |
68 /** |
52 * Schedule a periodic event. |
69 * Schedule a recurring event. |
53 * |
70 * |
54 * Schedules a hook which will be executed by the WordPress actions core on a |
71 * Schedules a hook which will be executed by the WordPress actions core on a |
55 * specific interval, specified by you. The action will trigger when someone |
72 * specific interval, specified by you. The action will trigger when someone |
56 * visits your WordPress site, if the scheduled time has passed. |
73 * visits your WordPress site, if the scheduled time has passed. |
57 * |
74 * |
58 * Valid values for the recurrence are hourly, daily and twicedaily. These can |
75 * Valid values for the recurrence are hourly, daily, and twicedaily. These can |
59 * be extended using the cron_schedules filter in wp_get_schedules(). |
76 * be extended using the {@see 'cron_schedules'} filter in wp_get_schedules(). |
60 * |
77 * |
61 * Use wp_next_scheduled() to prevent duplicates |
78 * Use wp_next_scheduled() to prevent duplicates |
62 * |
79 * |
63 * @since 2.1.0 |
80 * @since 2.1.0 |
64 * |
81 * |
65 * @param int $timestamp Timestamp for when to run the event. |
82 * @param int $timestamp Unix timestamp (UTC) for when to run the event. |
66 * @param string $recurrence How often the event should recur. |
83 * @param string $recurrence How often the event should recur. |
67 * @param string $hook Action hook to execute when cron is run. |
84 * @param string $hook Action hook to execute when event is run. |
68 * @param array $args Optional. Arguments to pass to the hook's callback function. |
85 * @param array $args Optional. Arguments to pass to the hook's callback function. |
69 * @return false|null False on failure, null when complete with scheduling event. |
86 * @return false|void False if the event does not get scheduled. |
70 */ |
87 */ |
71 function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) { |
88 function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) { |
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89 // Make sure timestamp is a positive integer |
|
90 if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) { |
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91 return false; |
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92 } |
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93 |
72 $crons = _get_cron_array(); |
94 $crons = _get_cron_array(); |
73 $schedules = wp_get_schedules(); |
95 $schedules = wp_get_schedules(); |
74 |
96 |
75 if ( !isset( $schedules[$recurrence] ) ) |
97 if ( !isset( $schedules[$recurrence] ) ) |
76 return false; |
98 return false; |
93 /** |
115 /** |
94 * Reschedule a recurring event. |
116 * Reschedule a recurring event. |
95 * |
117 * |
96 * @since 2.1.0 |
118 * @since 2.1.0 |
97 * |
119 * |
98 * @param int $timestamp Timestamp for when to run the event. |
120 * @param int $timestamp Unix timestamp (UTC) for when to run the event. |
99 * @param string $recurrence How often the event should recur. |
121 * @param string $recurrence How often the event should recur. |
100 * @param string $hook Action hook to execute when cron is run. |
122 * @param string $hook Action hook to execute when event is run. |
101 * @param array $args Optional. Arguments to pass to the hook's callback function. |
123 * @param array $args Optional. Arguments to pass to the hook's callback function. |
102 * @return false|null False on failure. Null when event is rescheduled. |
124 * @return false|void False if the event does not get rescheduled. |
103 */ |
125 */ |
104 function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() ) { |
126 function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() ) { |
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127 // Make sure timestamp is a positive integer |
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128 if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) { |
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129 return false; |
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130 } |
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131 |
105 $crons = _get_cron_array(); |
132 $crons = _get_cron_array(); |
106 $schedules = wp_get_schedules(); |
133 $schedules = wp_get_schedules(); |
107 $key = md5( serialize( $args ) ); |
134 $key = md5( serialize( $args ) ); |
108 $interval = 0; |
135 $interval = 0; |
109 |
136 |
130 |
157 |
131 wp_schedule_event( $timestamp, $recurrence, $hook, $args ); |
158 wp_schedule_event( $timestamp, $recurrence, $hook, $args ); |
132 } |
159 } |
133 |
160 |
134 /** |
161 /** |
135 * Unschedule a previously scheduled cron job. |
162 * Unschedule a previously scheduled event. |
136 * |
163 * |
137 * The $timestamp and $hook parameters are required, so that the event can be |
164 * The $timestamp and $hook parameters are required so that the event can be |
138 * identified. |
165 * identified. |
139 * |
166 * |
140 * @since 2.1.0 |
167 * @since 2.1.0 |
141 * |
168 * |
142 * @param int $timestamp Timestamp for when to run the event. |
169 * @param int $timestamp Unix timestamp (UTC) for when to run the event. |
143 * @param string $hook Action hook, the execution of which will be unscheduled. |
170 * @param string $hook Action hook, the execution of which will be unscheduled. |
144 * @param array $args Arguments to pass to the hook's callback function. |
171 * @param array $args Arguments to pass to the hook's callback function. |
145 * Although not passed to a callback function, these arguments are used |
172 * Although not passed to a callback function, these arguments are used |
146 * to uniquely identify the scheduled event, so they should be the same |
173 * to uniquely identify the scheduled event, so they should be the same |
147 * as those used when originally scheduling the event. |
174 * as those used when originally scheduling the event. |
|
175 * @return false|void False if the event does not get unscheduled. |
148 */ |
176 */ |
149 function wp_unschedule_event( $timestamp, $hook, $args = array() ) { |
177 function wp_unschedule_event( $timestamp, $hook, $args = array() ) { |
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178 // Make sure timestamp is a positive integer |
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179 if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) { |
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180 return false; |
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181 } |
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182 |
150 $crons = _get_cron_array(); |
183 $crons = _get_cron_array(); |
151 $key = md5(serialize($args)); |
184 $key = md5(serialize($args)); |
152 unset( $crons[$timestamp][$hook][$key] ); |
185 unset( $crons[$timestamp][$hook][$key] ); |
153 if ( empty($crons[$timestamp][$hook]) ) |
186 if ( empty($crons[$timestamp][$hook]) ) |
154 unset( $crons[$timestamp][$hook] ); |
187 unset( $crons[$timestamp][$hook] ); |
156 unset( $crons[$timestamp] ); |
189 unset( $crons[$timestamp] ); |
157 _set_cron_array( $crons ); |
190 _set_cron_array( $crons ); |
158 } |
191 } |
159 |
192 |
160 /** |
193 /** |
161 * Unschedule all cron jobs attached to a specific hook. |
194 * Unschedules all events attached to the hook with the specified arguments. |
162 * |
195 * |
163 * @since 2.1.0 |
196 * @since 2.1.0 |
164 * |
197 * |
165 * @param string $hook Action hook, the execution of which will be unscheduled. |
198 * @param string $hook Action hook, the execution of which will be unscheduled. |
166 * @param array $args Optional. Arguments that were to be pass to the hook's callback function. |
199 * @param array $args Optional. Arguments that were to be passed to the hook's callback function. |
167 */ |
200 */ |
168 function wp_clear_scheduled_hook( $hook, $args = array() ) { |
201 function wp_clear_scheduled_hook( $hook, $args = array() ) { |
169 // Backward compatibility |
202 // Backward compatibility |
170 // Previously this function took the arguments as discrete vars rather than an array like the rest of the API |
203 // Previously this function took the arguments as discrete vars rather than an array like the rest of the API |
171 if ( !is_array($args) ) { |
204 if ( !is_array($args) ) { |
172 _deprecated_argument( __FUNCTION__, '3.0', __('This argument has changed to an array to match the behavior of the other cron functions.') ); |
205 _deprecated_argument( __FUNCTION__, '3.0.0', __('This argument has changed to an array to match the behavior of the other cron functions.') ); |
173 $args = array_slice( func_get_args(), 1 ); |
206 $args = array_slice( func_get_args(), 1 ); |
174 } |
207 } |
175 |
208 |
176 // This logic duplicates wp_next_scheduled() |
209 // This logic duplicates wp_next_scheduled() |
177 // It's required due to a scenario where wp_unschedule_event() fails due to update_option() failing, |
210 // It's required due to a scenario where wp_unschedule_event() fails due to update_option() failing, |
187 } |
220 } |
188 } |
221 } |
189 } |
222 } |
190 |
223 |
191 /** |
224 /** |
192 * Retrieve the next timestamp for a cron event. |
225 * Unschedules all events attached to the hook. |
193 * |
226 * |
194 * @since 2.1.0 |
227 * Can be useful for plugins when deactivating to clean up the cron queue. |
195 * |
228 * |
196 * @param string $hook Action hook to execute when cron is run. |
229 * @since 4.9.0 |
|
230 * |
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231 * @param string $hook Action hook, the execution of which will be unscheduled. |
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232 */ |
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233 function wp_unschedule_hook( $hook ) { |
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234 $crons = _get_cron_array(); |
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235 |
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236 foreach( $crons as $timestamp => $args ) { |
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237 unset( $crons[ $timestamp ][ $hook ] ); |
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238 |
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239 if ( empty( $crons[ $timestamp ] ) ) { |
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240 unset( $crons[ $timestamp ] ); |
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241 } |
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242 } |
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243 |
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244 _set_cron_array( $crons ); |
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245 } |
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246 |
|
247 /** |
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248 * Retrieve the next timestamp for an event. |
|
249 * |
|
250 * @since 2.1.0 |
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251 * |
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252 * @param string $hook Action hook to execute when event is run. |
197 * @param array $args Optional. Arguments to pass to the hook's callback function. |
253 * @param array $args Optional. Arguments to pass to the hook's callback function. |
198 * @return bool|int The UNIX timestamp of the next time the scheduled event will occur. |
254 * @return false|int The Unix timestamp of the next time the scheduled event will occur. |
199 */ |
255 */ |
200 function wp_next_scheduled( $hook, $args = array() ) { |
256 function wp_next_scheduled( $hook, $args = array() ) { |
201 $crons = _get_cron_array(); |
257 $crons = _get_cron_array(); |
202 $key = md5(serialize($args)); |
258 $key = md5(serialize($args)); |
203 if ( empty($crons) ) |
259 if ( empty($crons) ) |
208 } |
264 } |
209 return false; |
265 return false; |
210 } |
266 } |
211 |
267 |
212 /** |
268 /** |
213 * Send request to run cron through HTTP request that doesn't halt page loading. |
269 * Sends a request to run cron through HTTP request that doesn't halt page loading. |
214 * |
270 * |
215 * @since 2.1.0 |
271 * @since 2.1.0 |
216 * |
272 * |
217 * @return null Cron could not be spawned, because it is not needed to run. |
273 * @param int $gmt_time Optional. Unix timestamp (UTC). Default 0 (current time is used). |
218 */ |
274 */ |
219 function spawn_cron( $gmt_time = 0 ) { |
275 function spawn_cron( $gmt_time = 0 ) { |
220 |
|
221 if ( ! $gmt_time ) |
276 if ( ! $gmt_time ) |
222 $gmt_time = microtime( true ); |
277 $gmt_time = microtime( true ); |
223 |
278 |
224 if ( defined('DOING_CRON') || isset($_GET['doing_wp_cron']) ) |
279 if ( defined('DOING_CRON') || isset($_GET['doing_wp_cron']) ) |
225 return; |
280 return; |
226 |
281 |
227 /* |
282 /* |
228 * multiple processes on multiple web servers can run this code concurrently |
283 * Get the cron lock, which is a Unix timestamp of when the last cron was spawned |
229 * try to make this as atomic as possible by setting doing_cron switch |
284 * and has not finished running. |
230 */ |
285 * |
|
286 * Multiple processes on multiple web servers can run this code concurrently, |
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287 * this lock attempts to make spawning as atomic as possible. |
|
288 */ |
231 $lock = get_transient('doing_cron'); |
289 $lock = get_transient('doing_cron'); |
232 |
290 |
233 if ( $lock > $gmt_time + 10 * MINUTE_IN_SECONDS ) |
291 if ( $lock > $gmt_time + 10 * MINUTE_IN_SECONDS ) |
234 $lock = 0; |
292 $lock = 0; |
235 |
293 |
245 $keys = array_keys( $crons ); |
303 $keys = array_keys( $crons ); |
246 if ( isset($keys[0]) && $keys[0] > $gmt_time ) |
304 if ( isset($keys[0]) && $keys[0] > $gmt_time ) |
247 return; |
305 return; |
248 |
306 |
249 if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) { |
307 if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) { |
250 if ( ! empty( $_POST ) || defined( 'DOING_AJAX' ) || defined( 'XMLRPC_REQUEST' ) ) { |
308 if ( 'GET' !== $_SERVER['REQUEST_METHOD'] || defined( 'DOING_AJAX' ) || defined( 'XMLRPC_REQUEST' ) ) { |
251 return; |
309 return; |
252 } |
310 } |
253 |
311 |
254 $doing_wp_cron = sprintf( '%.22F', $gmt_time ); |
312 $doing_wp_cron = sprintf( '%.22F', $gmt_time ); |
255 set_transient( 'doing_cron', $doing_wp_cron ); |
313 set_transient( 'doing_cron', $doing_wp_cron ); |
264 |
322 |
265 WP_DEBUG ? include_once( ABSPATH . 'wp-cron.php' ) : @include_once( ABSPATH . 'wp-cron.php' ); |
323 WP_DEBUG ? include_once( ABSPATH . 'wp-cron.php' ) : @include_once( ABSPATH . 'wp-cron.php' ); |
266 return; |
324 return; |
267 } |
325 } |
268 |
326 |
|
327 // Set the cron lock with the current unix timestamp, when the cron is being spawned. |
269 $doing_wp_cron = sprintf( '%.22F', $gmt_time ); |
328 $doing_wp_cron = sprintf( '%.22F', $gmt_time ); |
270 set_transient( 'doing_cron', $doing_wp_cron ); |
329 set_transient( 'doing_cron', $doing_wp_cron ); |
271 |
330 |
272 /** |
331 /** |
273 * Filter the cron request arguments. |
332 * Filters the cron request arguments. |
274 * |
333 * |
275 * @since 3.5.0 |
334 * @since 3.5.0 |
|
335 * @since 4.5.0 The `$doing_wp_cron` parameter was added. |
276 * |
336 * |
277 * @param array $cron_request_array { |
337 * @param array $cron_request_array { |
278 * An array of cron request URL arguments. |
338 * An array of cron request URL arguments. |
279 * |
339 * |
280 * @type string $url The cron request URL. |
340 * @type string $url The cron request URL. |
285 * @type int $timeout The request timeout in seconds. Default .01 seconds. |
345 * @type int $timeout The request timeout in seconds. Default .01 seconds. |
286 * @type bool $blocking Whether to set blocking for the request. Default false. |
346 * @type bool $blocking Whether to set blocking for the request. Default false. |
287 * @type bool $sslverify Whether SSL should be verified for the request. Default false. |
347 * @type bool $sslverify Whether SSL should be verified for the request. Default false. |
288 * } |
348 * } |
289 * } |
349 * } |
|
350 * @param string $doing_wp_cron The unix timestamp of the cron lock. |
290 */ |
351 */ |
291 $cron_request = apply_filters( 'cron_request', array( |
352 $cron_request = apply_filters( 'cron_request', array( |
292 'url' => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ), |
353 'url' => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ), |
293 'key' => $doing_wp_cron, |
354 'key' => $doing_wp_cron, |
294 'args' => array( |
355 'args' => array( |
295 'timeout' => 0.01, |
356 'timeout' => 0.01, |
296 'blocking' => false, |
357 'blocking' => false, |
297 /** This filter is documented in wp-includes/class-http.php */ |
358 /** This filter is documented in wp-includes/class-wp-http-streams.php */ |
298 'sslverify' => apply_filters( 'https_local_ssl_verify', false ) |
359 'sslverify' => apply_filters( 'https_local_ssl_verify', false ) |
299 ) |
360 ) |
300 ) ); |
361 ), $doing_wp_cron ); |
301 |
362 |
302 wp_remote_post( $cron_request['url'], $cron_request['args'] ); |
363 wp_remote_post( $cron_request['url'], $cron_request['args'] ); |
303 } |
364 } |
304 |
365 |
305 /** |
366 /** |
306 * Run scheduled callbacks or spawn cron for all scheduled events. |
367 * Run scheduled callbacks or spawn cron for all scheduled events. |
307 * |
368 * |
308 * @since 2.1.0 |
369 * @since 2.1.0 |
309 * |
|
310 * @return null When doesn't need to run Cron. |
|
311 */ |
370 */ |
312 function wp_cron() { |
371 function wp_cron() { |
313 |
|
314 // Prevent infinite loops caused by lack of wp-cron.php |
372 // Prevent infinite loops caused by lack of wp-cron.php |
315 if ( strpos($_SERVER['REQUEST_URI'], '/wp-cron.php') !== false || ( defined('DISABLE_WP_CRON') && DISABLE_WP_CRON ) ) |
373 if ( strpos($_SERVER['REQUEST_URI'], '/wp-cron.php') !== false || ( defined('DISABLE_WP_CRON') && DISABLE_WP_CRON ) ) |
316 return; |
374 return; |
317 |
375 |
318 if ( false === $crons = _get_cron_array() ) |
376 if ( false === $crons = _get_cron_array() ) |
334 } |
392 } |
335 } |
393 } |
336 } |
394 } |
337 |
395 |
338 /** |
396 /** |
339 * Retrieve supported and filtered Cron recurrences. |
397 * Retrieve supported event recurrence schedules. |
340 * |
398 * |
341 * The supported recurrences are 'hourly' and 'daily'. A plugin may add more by |
399 * The default supported recurrences are 'hourly', 'twicedaily', and 'daily'. A plugin may |
342 * hooking into the 'cron_schedules' filter. The filter accepts an array of |
400 * add more by hooking into the {@see 'cron_schedules'} filter. The filter accepts an array |
343 * arrays. The outer array has a key that is the name of the schedule or for |
401 * of arrays. The outer array has a key that is the name of the schedule or for |
344 * example 'weekly'. The value is an array with two keys, one is 'interval' and |
402 * example 'weekly'. The value is an array with two keys, one is 'interval' and |
345 * the other is 'display'. |
403 * the other is 'display'. |
346 * |
404 * |
347 * The 'interval' is a number in seconds of when the cron job should run. So for |
405 * The 'interval' is a number in seconds of when the cron job should run. So for |
348 * 'hourly', the time is 3600 or 60*60. For weekly, the value would be |
406 * 'hourly', the time is 3600 or 60*60. For weekly, the value would be |
370 'hourly' => array( 'interval' => HOUR_IN_SECONDS, 'display' => __( 'Once Hourly' ) ), |
428 'hourly' => array( 'interval' => HOUR_IN_SECONDS, 'display' => __( 'Once Hourly' ) ), |
371 'twicedaily' => array( 'interval' => 12 * HOUR_IN_SECONDS, 'display' => __( 'Twice Daily' ) ), |
429 'twicedaily' => array( 'interval' => 12 * HOUR_IN_SECONDS, 'display' => __( 'Twice Daily' ) ), |
372 'daily' => array( 'interval' => DAY_IN_SECONDS, 'display' => __( 'Once Daily' ) ), |
430 'daily' => array( 'interval' => DAY_IN_SECONDS, 'display' => __( 'Once Daily' ) ), |
373 ); |
431 ); |
374 /** |
432 /** |
375 * Filter the non-default cron schedules. |
433 * Filters the non-default cron schedules. |
376 * |
434 * |
377 * @since 2.1.0 |
435 * @since 2.1.0 |
378 * |
436 * |
379 * @param array $new_schedules An array of non-default cron schedules. Default empty. |
437 * @param array $new_schedules An array of non-default cron schedules. Default empty. |
380 */ |
438 */ |
381 return array_merge( apply_filters( 'cron_schedules', array() ), $schedules ); |
439 return array_merge( apply_filters( 'cron_schedules', array() ), $schedules ); |
382 } |
440 } |
383 |
441 |
384 /** |
442 /** |
385 * Retrieve Cron schedule for hook with arguments. |
443 * Retrieve the recurrence schedule for an event. |
386 * |
444 * |
387 * @since 2.1.0 |
445 * @see wp_get_schedules() for available schedules. |
388 * |
446 * |
389 * @param string $hook Action hook to execute when cron is run. |
447 * @since 2.1.0 |
390 * @param array $args Optional. Arguments to pass to the hook's callback function. |
448 * |
391 * @return string|bool False, if no schedule. Schedule on success. |
449 * @param string $hook Action hook to identify the event. |
|
450 * @param array $args Optional. Arguments passed to the event's callback function. |
|
451 * @return string|false False, if no schedule. Schedule name on success. |
392 */ |
452 */ |
393 function wp_get_schedule($hook, $args = array()) { |
453 function wp_get_schedule($hook, $args = array()) { |
394 $crons = _get_cron_array(); |
454 $crons = _get_cron_array(); |
395 $key = md5(serialize($args)); |
455 $key = md5(serialize($args)); |
396 if ( empty($crons) ) |
456 if ( empty($crons) ) |