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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 |
|---|---|
| 1240 | |
| 1241 | /** |
| 1242 | * Fires in uninstall_plugin() immediately before the plugin is uninstalled. |
| 1243 | * |
| 1244 | * @since 4.5.0 |
| 1245 | * |
| 1246 | * @param string $plugin Path to the plugin file relative to the plugins directory. |
| 1247 | * @param array $uninstallable_plugins Uninstallable plugins. |
| 1248 | */ |
| 1249 | do_action( 'pre_uninstall_plugin', $plugin, $uninstallable_plugins ); |
| 1250 | |
| 1251 | if ( file_exists( WP_PLUGIN_DIR . '/' . dirname( $file ) . '/uninstall.php' ) ) { |
| 1252 | if ( isset( $uninstallable_plugins[ $file ] ) ) { |
| 1253 | unset( $uninstallable_plugins[ $file ] ); |
| 1254 | update_option( 'uninstall_plugins', $uninstallable_plugins ); |
| 1255 | } |
| 1256 | unset( $uninstallable_plugins ); |
| 1257 | |
| 1258 | define( 'WP_UNINSTALL_PLUGIN', $file ); |