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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 |
|---|---|
| 174 | |
| 175 | $rollback_result = $this->upgrade( $current, array_merge( $parsed_args, array( 'do_rollback' => true ) ) ); |
| 176 | |
| 177 | $original_result = $result; |
| 178 | $result = new WP_Error( 'rollback_was_required', $this->strings['rollback_was_required'], (object) array( 'update' => $original_result, 'rollback' => $rollback_result ) ); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | /** This action is documented in wp-admin/includes/class-wp-upgrader.php */ |
| 183 | do_action( 'upgrader_process_complete', $this, array( 'action' => 'update', 'type' => 'core' ) ); |
| 184 | |
| 185 | // Clear the current updates |
| 186 | delete_site_transient( 'update_core' ); |
| 187 | |
| 188 | if ( ! $parsed_args['do_rollback'] ) { |
| 189 | $stats = array( |
| 190 | 'update_type' => $current->response, |
| 191 | 'success' => true, |
| 192 | 'fs_method' => $wp_filesystem->method, |