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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 |
|---|---|
| 2907 | * |
| 2908 | * This filter is also used on about.php to check if a plugin has disabled |
| 2909 | * these notifications. |
| 2910 | * |
| 2911 | * @since 3.7.0 |
| 2912 | * |
| 2913 | * @param bool $notify Whether the site administrator is notified. |
| 2914 | * @param object $item The update offer. |
| 2915 | */ |
| 2916 | if ( ! apply_filters( 'send_core_update_notification_email', $notify, $item ) ) |
| 2917 | return false; |
| 2918 | |
| 2919 | $this->send_email( 'manual', $item ); |
| 2920 | return true; |
| 2921 | } |
| 2922 | |
| 2923 | /** |
| 2924 | * Update an item, if appropriate. |
| 2925 | * |