wpsnoop: fix NF Captcha plugin conflicts, errors & issues

When the plugin NF Captcha 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 NF Captcha, plus learn which plugins and/or themes could be in conflict with NF Captcha.

Troubleshooting theme and plugin conflicts is easier when you know what NF Captcha 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 NF Captcha

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What does NF Captcha version 1.0 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for NF Captcha to perform differently in your installation, previous versions before 1.0 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 1.0 of NF Captcha 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 NF Captcha 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: NF Captcha

Plugin Slug: nf-captcha Internal ID: 48346 Addon Type: Plugin Version: 1.0 Price: Free Source: WordPress.org Files: 11 (15.81kB) Short Codes: [ / ] 0 Database Tables: 0 Function Count: 8 Code Review: Search Provit

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Which new files does NF Captcha add to WordPress?

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

The plugin NF Captcha added 11 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/plugins/nf-captcha/	15.81kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/js/	288.00B	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/js/nf-captcha-script.js	288.00B	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/	5.86kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/index.php	28.00B	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/nf-captcha-de_DE.mo	1.50kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/nf-captcha-de_DE.po	1.77kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/nf-captcha.po	1.28kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/lang/nf-captcha.pot	1.28kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/nf-captcha.php	8.58kB	No known conflicts with other themes or plugins.
wp-content/plugins/nf-captcha/readme.txt	1.09kB	No known conflicts with other themes or plugins.

Which new shortcodes does NF Captcha add to WordPress?

The plugin NF Captcha 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 NF Captcha?

NF Captcha 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 NF Captcha?

None. There may be settings which have been changed by installing the NF Captcha plugin however we do not yet track those changes.

What new PHP functions does NF Captcha declare when it is active?

Installing NF Captcha added 8 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
hex2rgb	28 conflicts	Fatal error: Cannot redeclare hex2rgb()
nf_captcha_dependencies	0 conflicts	Fatal error: Cannot redeclare nf_captcha_dependencies()
nf_captcha_display	0 conflicts	Fatal error: Cannot redeclare nf_captcha_display()
nf_captcha_extend_setup_license	0 conflicts	Fatal error: Cannot redeclare nf_captcha_extend_setup_license()
nf_captcha_load_lang	0 conflicts	Fatal error: Cannot redeclare nf_captcha_load_lang()
nf_captcha_pre_process	0 conflicts	Fatal error: Cannot redeclare nf_captcha_pre_process()
nf_captcha_scripts	0 conflicts	Fatal error: Cannot redeclare nf_captcha_scripts()
nf_register_field_reallysimplecaptcha	0 conflicts	Fatal error: Cannot redeclare nf_register_field_reallysimplecaptcha()

Using NF Captcha 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 NF Captcha from the command line with WP-CLI

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

wp plugin install nf-captcha

How to activate NF Captcha from the command line with WP-CLI

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

wp plugin install nf-captcha --activate

How to reinstall NF Captcha from the command line with WP-CLI

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

wp plugin install nf-captcha --force

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

wp plugin update nf-captcha

How to delete NF Captcha from the command line with WP-CLI

wp plugin delete nf-captcha

Where can you download earlier versions of NF Captcha?

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 NF Captcha 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 NF Captcha

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 NF Captcha. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.