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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 |
|---|---|
| 314 | * An array of metadata about the available plugin update. |
| 315 | * |
| 316 | * @type int $id Plugin ID. |
| 317 | * @type string $slug Plugin slug. |
| 318 | * @type string $new_version New plugin version. |
| 319 | * @type string $url Plugin URL. |
| 320 | * @type string $package Plugin update package URL. |
| 321 | * } |
| 322 | */ |
| 323 | do_action( "in_plugin_update_message-{$file}", $plugin_data, $r ); |
| 324 | |
| 325 | echo '</div></td></tr>'; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | function get_theme_updates() { |
| 330 | $current = get_site_transient('update_themes'); |
| 331 | |
| 332 | if ( ! isset( $current->response ) ) |