# wp-config.php Settings Overview Under Tools

> Adds a Tools > Config Constants screen that shows the value of important wp-config.php settings, such as debug mode, memory limits, cron, caching and file editing, without opening the file.

- Type: PHP
- Runs: Admin only
- Category: [Developer](https://wpide.com/library/category/developer/)
- Tags: wp-config, debugging, constants
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/debug-wp-config-constants/

## Code

```php
// Constants to display.
$wpide_config_constants = array( 'WP_ENVIRONMENT_TYPE', 'WP_DEBUG', 'WP_DEBUG_LOG', 'WP_DEBUG_DISPLAY', 'SCRIPT_DEBUG', 'SAVEQUERIES', 'WP_MEMORY_LIMIT', 'WP_MAX_MEMORY_LIMIT', 'WP_CACHE', 'DISABLE_WP_CRON', 'ALTERNATE_WP_CRON', 'WP_CRON_LOCK_TIMEOUT', 'WP_POST_REVISIONS', 'AUTOSAVE_INTERVAL', 'EMPTY_TRASH_DAYS', 'DISALLOW_FILE_EDIT', 'DISALLOW_FILE_MODS', 'AUTOMATIC_UPDATER_DISABLED', 'WP_AUTO_UPDATE_CORE', 'FORCE_SSL_ADMIN', 'CONCATENATE_SCRIPTS', 'COMPRESS_SCRIPTS', 'WP_HOME', 'WP_SITEURL', 'WP_CONTENT_DIR', 'UPLOADS', 'DB_CHARSET', 'DB_COLLATE', 'WP_ALLOW_REPAIR', 'MULTISITE' );

add_action( 'admin_menu', function () use ( $wpide_config_constants ) {
    add_management_page( 'Config Constants', 'Config Constants', 'manage_options', 'wpide-config-constants', function () use ( $wpide_config_constants ) {
        echo '<div class="wrap"><h1>wp-config.php Constants</h1><table class="widefat striped" style="max-width:900px"><thead><tr><th>Constant</th><th>Value</th></tr></thead><tbody>';
        foreach ( $wpide_config_constants as $name ) {
            if ( preg_match( '/KEY|SALT|PASSWORD|SECRET|TOKEN/', $name ) ) {
                continue;
            }
            if ( ! defined( $name ) ) {
                $value = '<em>not set</em>';
            } else {
                $raw   = constant( $name );
                $value = '<code>' . esc_html( is_bool( $raw ) ? ( $raw ? 'true' : 'false' ) : var_export( $raw, true ) ) . '</code>';
            }
            printf( '<tr><td><code>%s</code></td><td>%s</td></tr>', esc_html( $name ), $value );
        }
        echo '</tbody></table></div>';
    } );
} );
```

## Notes

Secret keys, salts and database passwords are never shown; add more names to $wpide_config_constants.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "wp-config.php Settings Overview Under Tools" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/