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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 |
|---|---|
| 703 | * @type bool $bulk Whether the update process is a bulk update. Default true. |
| 704 | * @type string $plugin Path to the plugin file relative to the plugins directory. |
| 705 | * @type string $theme The stylesheet or template name of the theme. |
| 706 | * @type string $language_update_type The language pack update type. Accepts 'plugin', 'theme', |
| 707 | * or 'core'. |
| 708 | * @type object $language_update The language pack update offer. |
| 709 | * } |
| 710 | * } |
| 711 | */ |
| 712 | $options = apply_filters( 'upgrader_package_options', $options ); |
| 713 | |
| 714 | if ( ! $options['is_multi'] ) { // Call $this->header separately if running multiple times. |
| 715 | $this->skin->header(); |
| 716 | } |
| 717 | |
| 718 | // Connect to the filesystem first. |
| 719 | $res = $this->fs_connect( array( WP_CONTENT_DIR, $options['destination'] ) ); |
| 720 | // Mainly for non-connected filesystem. |
| 721 | if ( ! $res ) { |