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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 |
|---|---|
| 576 | * |
| 577 | * If a plugin is silently activated (such as during an update), |
| 578 | * this hook does not fire. |
| 579 | * |
| 580 | * @since 2.0.0 |
| 581 | * |
| 582 | * @param bool $network_wide Whether to enable the plugin for all sites in the network |
| 583 | * or just the current site. Multisite only. Default is false. |
| 584 | */ |
| 585 | do_action( 'activate_' . $plugin, $network_wide ); |
| 586 | } |
| 587 | |
| 588 | if ( $network_wide ) { |
| 589 | $current = get_site_option( 'active_sitewide_plugins', array() ); |
| 590 | $current[$plugin] = time(); |
| 591 | update_site_option( 'active_sitewide_plugins', $current ); |
| 592 | } else { |
| 593 | $current = get_option( 'active_plugins', array() ); |
| 594 | $current[] = $plugin; |