apply_filters( ‘upgrader_pre_install’, bool|WP_Error $response, array $hook_extra )

User Contributed Notes

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   Nazmul Ahsan 4 months ago

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   If you want to keep the current version and the previous version in the database (for debugging purposes)-

   <?php
   function wpdocs_plugin_store_previous_version( $upgrader_object, $options ) {
   	if ( 'update' === $options['action'] && 'plugin' === $options['type'] ) {
   		foreach ( $options['plugins'] as $plugin ) {
   			if ( plugin_basename( $plugin ) === 'wpdocs-plugin/wpdocs-plugin.php' ) {
   				update_option( 'wpdocs-plugin_previous_version', WPDOCS_PLUGIN_VER );
   			}
   		}
   	}
   }
   	
   function wpdocs_plugin_store_new_version( $upgrader_object, $options ) {
   	if ( 'update' === $options['action'] && 'plugin' === $options['type'] ) {
   		foreach ( $options['plugins'] as $plugin ) {
   			if ( plugin_basename( $plugin ) === 'wpdocs-plugin/wpdocs-plugin.php' ) {
   				update_option( 'wpdocs-plugin_previous_version', get_option( 'wpdocs-plugin_previous_version' ) );
   				update_option( 'wpdocs-plugin_current_version', WPDOCS_PLUGIN_VER );
   			}
   		}
   	}
   }
   
   add_action( 'upgrader_pre_install', 'wpdocs_plugin_store_previous_version', 10, 2 );
   add_action( 'upgrader_process_complete', 'wpdocs_plugin_store_new_version', 10, 2 );