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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 |
|---|---|
| 987 | |
| 988 | /** |
| 989 | * Fires in uninstall_plugin() immediately before the plugin is uninstalled. |
| 990 | * |
| 991 | * @since 4.5.0 |
| 992 | * |
| 993 | * @param string $plugin Relative plugin path from plugin directory. |
| 994 | * @param array $uninstallable_plugins Uninstallable plugins. |
| 995 | */ |
| 996 | do_action( 'pre_uninstall_plugin', $plugin, $uninstallable_plugins ); |
| 997 | |
| 998 | if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) { |
| 999 | if ( isset( $uninstallable_plugins[$file] ) ) { |
| 1000 | unset($uninstallable_plugins[$file]); |
| 1001 | update_option('uninstall_plugins', $uninstallable_plugins); |
| 1002 | } |
| 1003 | unset($uninstallable_plugins); |
| 1004 | |
| 1005 | define('WP_UNINSTALL_PLUGIN', $file); |