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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 |
|---|---|
| 967 | * |
| 968 | * @param array $update_data { |
| 969 | * Fetched update data. |
| 970 | * |
| 971 | * @type array $counts An array of counts for available plugin, theme, and WordPress updates. |
| 972 | * @type string $update_title Titles of available updates. |
| 973 | * } |
| 974 | * @param array $titles An array of update counts and UI strings for available updates. |
| 975 | */ |
| 976 | return apply_filters( 'wp_get_update_data', $update_data, $titles ); |
| 977 | } |
| 978 | |
| 979 | /** |
| 980 | * Determines whether core should be updated. |
| 981 | * |
| 982 | * @since 2.8.0 |
| 983 | * |
| 984 | * @global string $wp_version The WordPress version string. |
| 985 | */ |