wpsnoop: fix Guestonline plugin conflicts, errors & issues

When the plugin Guestonline conflicts or throws a PHP error we hope wpsnoop can help you to fix the issue quickly.

Discover which shortcodes wp-options PHP functions database tables and files are created by Guestonline, plus learn which plugins and/or themes could be in conflict with Guestonline.

Troubleshooting theme and plugin conflicts is easier when you know what Guestonline leaves behind after uninstalling it from a WordPress installation, there is a list down below for your convenience.

Expert advice is recommended if you are not technically proficient with PHP, MySQL etc. View support options for Guestonline

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What does Guestonline version 2.0 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Guestonline to perform differently in your installation, previous versions before 2.0 may have created a different set of shortcodes, used different function names or could have created entirely different database tables to store settings and operate. This is not an exhaustive list but shows how version 2.0 of Guestonline behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this plugin but instead have concentrated on the potential for obvious errors and conflicts which can occur, if you need help with the plugin in your local installation you can get WordPress help and support for Guestonline by clicking here.

Our testing covered the free version of this plugin there may or may not be a paid version or premium version available for purchase that unlocks additional features and could behave in a slightly or very different manner.

Summary of WordPress plugin analysis: Guestonline

Plugin Slug: guestonlin Internal ID: 32905 Addon Type: Plugin Version: 2.0 Price: Free Source: WordPress.org Files: 10 (26.93kB) Short Codes: [ / ] 0 Database Tables: 0 Function Count: 9 Code Review: Search Provit

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Which new files does Guestonline add to WordPress?

This section will populate with a table showing an icon, size and filepath.

The plugin Guestonline added 10 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/plugins/guestonlin/	26.93kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/admin.php	3.10kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/instabook-fr_FR.mo	1.74kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/instabook-fr_FR.po	2.96kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/instabook.css		No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/instabook.js		No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/instabook.php	3.54kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/readme.txt	3.63kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/warning.php	2.07kB	No known conflicts with other themes or plugins.
wp-content/plugins/guestonlin/widget.php	9.89kB	No known conflicts with other themes or plugins.

Which new shortcodes does Guestonline add to WordPress?

The plugin Guestonline did not add any shortcodes when it was installed with WP-CLI in our WordPress test environment.

Which new database tables are created by the WordPress plugin Guestonline?

Guestonline did not create any new database tables when it was installed. It is possible that the plugin creates new database tables after an initial setup or configuration or after some period of use.

Which new options are added to the wp-options table by Guestonline?

When Guestonline was activated and loaded for the first time it created 1 new option in the wp_options table. Any known conflicts will be shown in red.

Option Name		Known Conflicts
widget_wp-instabook-bookings		Potential conflict with 1 plugin or theme
a:1:{s:12:"_multiwidget";i:1;}

During use Guestonline may or may not create more options depending on how the plugin is configured and depending on which other themes and plugins are active in your specific hosting environment.

After disabling and deleting Guestonline there were 2 options still present in the wp-options table:

recently_activated
widget_wp-instabook-bookings

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What new PHP functions does Guestonline declare when it is active?

Installing Guestonline added 9 new functions to Wordpress at run-time. These functions are internal and generally aren't meant to be used except by developpers who wish to interface with the plugin to enhance or alter its behavior.

Function	Conflicts	Common Errors
instabook_build_iframe	1 conflict	Fatal error: Cannot redeclare instabook_build_iframe()
instabook_clean_db	1 conflict	Fatal error: Cannot redeclare instabook_clean_db()
instabook_get_host_bookings	1 conflict	Fatal error: Cannot redeclare instabook_get_host_bookings()
instabook_get_host_snews	1 conflict	Fatal error: Cannot redeclare instabook_get_host_snews()
instabook_get_referal_key	1 conflict	Fatal error: Cannot redeclare instabook_get_referal_key()
instabook_init	1 conflict	Fatal error: Cannot redeclare instabook_init()
instabook_set_referal_key	1 conflict	Fatal error: Cannot redeclare instabook_set_referal_key()
load_css	4 conflicts	Fatal error: Cannot redeclare load_css()
load_file	2 conflicts	Fatal error: Cannot redeclare load_file()

Using Guestonline from the command line with WP-CLI

The following commands are provided for convenience and should only be used if you understand how WP-CLI works. These commands refer to a single WordPress instance and may need to be modified if you are working with a Multisite installation.

How to install Guestonline from the command line with WP-CLI

Navigate to the root of your WordPress installation and type the following command:

wp plugin install guestonlin

How to activate Guestonline from the command line with WP-CLI

To immediately activate Guestonline after WP-CLI downloads the latest version you can use the following command:

wp plugin install guestonlin --activate

How to reinstall Guestonline from the command line with WP-CLI

To force a reinstallation of Guestonline which overwrites the current plugin without asking for confirmation you can use the following command:

wp plugin install guestonlin --force

How to update Guestonline to the latest version from the command line with WP-CLI

wp plugin update guestonlin

How to delete Guestonline from the command line with WP-CLI

wp plugin delete guestonlin

Where can you download earlier versions of Guestonline?

Whenever possible you should use the latest version of plugins and themes, however if you have recently updated and discovered that you need to install an earlier version you may be able to download other versions of Guestonline from the WordPress repository by visiting this link.

Please note that installing earlier versions of a theme or plugin is not generally a recommended course of action for most users and could re-introduce security, stability or other issues in Guestonline

About our testing enviroment

Tests were conducted using Apache 2.4.29, PHP 7.2 on Ubuntu 18.04, MySQL 5.7.33 and WordPress 5.9

It is very possible that different versions of PHP such as PHP 8.0, PHP 7.4, or PHP 7.3 could behave differently with Guestonline. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.