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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 |
|---|---|
| 929 | /** |
| 930 | * Filters whether to send an email following an automatic background theme update. |
| 931 | * |
| 932 | * @since 5.5.0 |
| 933 | * @since 5.5.1 Added the `$update_results` parameter. |
| 934 | * |
| 935 | * @param bool $enabled True if theme update notifications are enabled, false otherwise. |
| 936 | * @param array $update_results The results of theme update tasks. |
| 937 | */ |
| 938 | $notifications_enabled = apply_filters( 'auto_theme_update_send_email', true, $update_results['theme'] ); |
| 939 | |
| 940 | if ( $notifications_enabled ) { |
| 941 | foreach ( $update_results['theme'] as $update_result ) { |
| 942 | if ( true === $update_result->result ) { |
| 943 | $successful_updates['theme'][] = $update_result; |
| 944 | } else { |
| 945 | $failed_updates['theme'][] = $update_result; |
| 946 | } |
| 947 | } |