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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 |
|---|---|
| 639 | * |
| 640 | * @param array $update_data { |
| 641 | * Fetched update data. |
| 642 | * |
| 643 | * @type array $counts An array of counts for available plugin, theme, and WordPress updates. |
| 644 | * @type string $update_title Titles of available updates. |
| 645 | * } |
| 646 | * @param array $titles An array of update counts and UI strings for available updates. |
| 647 | */ |
| 648 | return apply_filters( 'wp_get_update_data', $update_data, $titles ); |
| 649 | } |
| 650 | |
| 651 | /** |
| 652 | * Determines whether core should be updated. |
| 653 | * |
| 654 | * @since 2.8.0 |
| 655 | * |
| 656 | * @global string $wp_version |
| 657 | */ |