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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 |
|---|---|
| 677 | * @type bool $bulk Whether the update process is a bulk update. Default true. |
| 678 | * @type string $plugin The base plugin path from the plugins directory. |
| 679 | * @type string $theme The stylesheet or template name of the theme. |
| 680 | * @type string $language_update_type The language pack update type. Accepts 'plugin', 'theme', |
| 681 | * or 'core'. |
| 682 | * @type object $language_update The language pack update offer. |
| 683 | * } |
| 684 | * } |
| 685 | */ |
| 686 | $options = apply_filters( 'upgrader_package_options', $options ); |
| 687 | |
| 688 | if ( ! $options['is_multi'] ) { // call $this->header separately if running multiple times |
| 689 | $this->skin->header(); |
| 690 | } |
| 691 | |
| 692 | // Connect to the Filesystem first. |
| 693 | $res = $this->fs_connect( array( WP_CONTENT_DIR, $options['destination'] ) ); |
| 694 | // Mainly for non-connected filesystem. |
| 695 | if ( ! $res ) { |