Andy Fragen

This plugin sets the following debug constants in <code>wp-config.php</code> on plugin activation and removes them on plugin deactivation. Any errors will result in a PHP Exception being thrown. Debug constants per <a href="https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/" rel="nofollow ugc">Debugging in WordPress</a>.
Default settings:
<pre><code>define( 'WP_DEBUG_LOG', true );
define( 'SCRIPT_DEBUG', true );
define( 'SAVEQUERIES', true );
</code></pre>
  
 @ini_set( ‘display_errors’, 1 ); is set when the plugin is active. <code>WP_DEBUG</code> is set to true when the plugin is first run, thereafter it can be turned off in the Settings.
The Settings page allows the user to set the following.
<pre><code>define( 'WP_DEBUG', true ); // Default on initial plugin installation.
define( 'WP_DEBUG_DISPLAY', false ); // Default when not declared is true.
define( 'WP_DISABLE_FATAL_ERROR_HANDLER', true ); // WordPress 5.2 WSOD Override.
</code></pre>
When the plugin is deactivated best efforts are made to re-add pre-existing constants to their former state. When the plugin is activated the default settings and any saved settings are restored.
This plugin uses the <a href="https://github.com/wp-cli/wp-config-transformer" rel="nofollow ugc">wp-cli/wp-config-transformer</a> command for writing constants to <code>wp-config.php</code>.
<a href="https://github.com/norcross/debug-quick-look" rel="nofollow ugc">Debug Quick Look</a> from Andrew Norcross is included with this plugin to assist in reading the debug.log file. If you already have this plugin installed you should delete it when WP Debugging is not active.
<a href="https://wordpress.org/plugins/query-monitor/" rel="ugc">Query Monitor</a> and <a href="https://wordpress.org/plugins/debug-bar/" rel="ugc">Debug Bar</a> plugins are optional dependencies to aid in debugging and troubleshooting. The notice for installation will recur 45 days after being dismissed.
If you have a non-standard location for your <code>wp-config.php</code> file you can use the filter <code>wp_debugging_config_path</code> to return the file path for your installation.
The filter <code>wp_debugging_add_constants</code> allows the user to add constants to <code>wp-config.php</code>.
The filter returns an array where the key is the name of the constant and the value is an array of data containing the value as a string and a boolean to indicate whether or not the value should be passed without quotes.
<pre><code>$my_constants = [
 'my_test_constant' =>
 [
 'value' => 'abc123',
 'raw' => false,
 ],
 'another_test_constant' => [ 'value' => 'true' ],
];
</code></pre>
The <code>value</code> option contains the constant’s value as a string.
The <code>raw</code> option means that instead of placing the value inside the config as a string it will become unquoted. The default is <code>true</code>. Set as <code>false</code> for non-boolean values.
Example:
<pre><code>add_filter(
 'wp_debugging_add_constants',
 function( $added_constants ) {
 $my_constants = [
 'my_test_constant' => [
 'value' => '124xyz',
 'raw' => false,
 ],
 'another_test_constant' => [ 'value' => 'true' ],
 ];
 return array_merge( $added_constants, $my_constants );
 },
 10,
 1
);
</code></pre>
This will create the following constants.
<pre><code>define( 'MY_TEST_CONSTANT', '124xyz' );
define( 'ANOTHER_TEST_CONSTANT', true );
</code></pre>
<h3>Development</h3>
PRs are welcome against the <a href="https://github.com/afragen/wp-debugging" rel="nofollow ugc">develop branch on GitHub</a>.

WP Debugging

This helps me support customers and get better debugging information about errors happening on their site without having to ask for sensitive login info. Simple and does a great job, I've used it or recommended it a dozen times in the last month.

Great support tool

I can't tell you the number of times I've had to handle a support request that involved a white screen. Thank you, @afragen, for building this awesome tool to help define constants for a file that isn't easily accessible without passing around credentials.

Super Handy!

Thanks for the useful plugin, we're going to start recommending this to our customers.

Useful Plugin

Thank you for this useful and beautiful plugin, helps me a lot.

Very useful

Quick access to the log files speeds up development!

Great plugin

With this plugin it's at last possible to debug a remote site wihtout having access to the cpanel!

Very useful!


Every time I come across an obscure problem on WordPress sites, I start looking for it by installing this plugin.Thanks to the developers for a great tool!


Perfect tool for debug.

Yet another one of your plugins that I love and use all the time!  Thank you.  (Side note: is there a place to buy you a coffee or donate for your time?)

Another great debugging plugin

A support/troubleshooting plugin for WordPress.

Venutius

PluginRx

The “Developer Debug Tools” WordPress plugin is a powerhouse for developers and site administrators! It’s a comprehensive toolkit that helps you identify, troubleshoot, and resolve issues in your WordPress site, making debugging a breeze.
This plugin offers a suite of features to aid in debugging, including, but not limited to:
<ul>
<li>Viewing and clearing <code>debug.log</code> and other error logs</li>
<li>Debug log Easy Reader combines duplicate lines and breaks down each error in an easy to read format</li>
<li>Viewing and updating <code>wp-config.php</code> and <code>.htaccess</code> files</li>
<li>Viewing and editing user meta and post meta</li>
<li>Viewing detailed info on post types and taxonomies</li>
<li>Quick links for debugging users, posts, pages and comments</li>
<li>Clearing all taxonomy terms from a given post</li>
<li>Clearing all or expired transients easily</li>
<li>Finding which posts and pages shortcodes are used on</li>
<li>Seeing whom is online with their roles</li>
<li>Activity logging such as when user meta, post meta, site settings, plugins and themes are updated or when bots crawl the site</li>
<li>Discord notifications of fatal errors, user page loads, and user logins</li>
<li>Viewing your database tables and entries at a glance without worry</li>
<li>Enhancements to the admin bar such as condensing/removing items and seeing user/post info at a glance</li>
<li>Viewing helpful information such php.ini values, php configs, scheduled cron jobs, site options, global variables, server metrics and more</li>
<li>Access to a handful of additional functions and hooks that you can use for debugging</li>
</ul>
With “Developer Debug Tools”, you can:
<ul>
<li>Identify and fix errors, bugs, and conflicts</li>
<li>Troubleshoot complex issues with ease</li>
<li>Update user and post meta straight from the admin area</li>
<li>Streamline your development and testing workflow</li>
</ul>
This plugin is a must-have for any WordPress developer or site administrator who wants to ensure a stable, efficient, and high-performing website. It’s like having a trusty sidekick that helps you tackle even the most challenging debugging tasks!
<h3>Demo</h3>
<iframe loading="lazy" title="Developer Debug Tools (WordPress Plugin)" width="750" height="422" src="https://www.youtube.com/embed/l45T__AIHME?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

Developer Debug Tools


Thanks for creating this plugin. It has many many wonderful features!


Wonderful plugin!

Lots of debugging and testing tools for developers.

WP Debugging vs Developer Debug Tools