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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.
| Line | Code |
|---|---|
| 2569 | * |
| 2570 | * This filter is also used on about.php to check if a plugin has disabled |
| 2571 | * these notifications. |
| 2572 | * |
| 2573 | * @since 3.7.0 |
| 2574 | * |
| 2575 | * @param bool $notify Whether the site administrator is notified. |
| 2576 | * @param object $item The update offer. |
| 2577 | */ |
| 2578 | if ( ! apply_filters( 'send_core_update_notification_email', $notify, $item ) ) |
| 2579 | return false; |
| 2580 | |
| 2581 | $this->send_email( 'manual', $item ); |
| 2582 | return true; |
| 2583 | } |
| 2584 | |
| 2585 | /** |
| 2586 | * Update an item, if appropriate. |
| 2587 | * |