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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.
This hook occurs 2 times in this file.
Line | Code |
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94 | * An object containing an event's data. |
95 | * |
96 | * @type string $hook Action hook to execute when the event is run. |
97 | * @type int $timestamp Unix timestamp (UTC) for when to next run the event. |
98 | * @type string|false $schedule How often the event should subsequently recur. |
99 | * @type array $args Array containing each separate argument to pass to the hook's callback function. |
100 | * @type int $interval The interval time in seconds for the schedule. Only present for recurring events. |
101 | * } |
102 | */ |
103 | $event = apply_filters( 'schedule_event', $event ); |
104 |
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105 | // A plugin disallowed this event |
106 | if ( ! $event ) { |
107 | return false; |
108 | } |
109 |
|
110 | $key = md5( serialize( $event->args ) ); |
111 |
|
112 | $crons = _get_cron_array(); |
Line | Code |
169 | ); |
170 |
|
171 | /** This filter is documented in wp-includes/cron.php */ |
172 | $pre = apply_filters( 'pre_schedule_event', null, $event ); |
173 | if ( null !== $pre ) { |
174 | return $pre; |
175 | } |
176 |
|
177 | /** This filter is documented in wp-includes/cron.php */ |
178 | $event = apply_filters( 'schedule_event', $event ); |
179 |
|
180 | // A plugin disallowed this event |
181 | if ( ! $event ) { |
182 | return false; |
183 | } |
184 |
|
185 | $key = md5( serialize( $event->args ) ); |
186 |
|
187 | $crons = _get_cron_array(); |