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WordPress Plugin Conflict Checklist Generator

The WordPress Plugin Conflict Checklist Generator creates tailored, step-by-step diagnostic runbooks to resolve fatal errors (White Screen of Death), checkout failures, REST API timeouts, and theme layout conflicts. Based on your server environment, access levels (WP Admin, FTP, SSH/WP-CLI), and installed caching layers, it provides an interactive troubleshooting checklist to safely isolate bugs without losing live site data.

Incident Environment

⚡ Binary Search Efficiency: With 28 plugins, linear testing requires up to 28 deactivations. Logarithmic binary search (halving) isolates the conflicting plugin in at most 5 testing rounds.
Diagnostic Progress: 0%0 of 9 tasks completed
Snapshot Database & FilesPhase 1

Trigger an on-demand snapshot through your web hosting control panel or SFTP download.

Activate WordPress Debug LoggingPhase 1

Add WP_DEBUG_LOG directives to wp-config.php so PHP crashes are recorded to /wp-content/debug.log rather than leaking to visitors.

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
Trigger Core Safe RecoveryPhase 1

Rename /wp-content/plugins/ to /wp-content/plugins_deactivated/ to instantly regain admin dashboard access without dropping settings.

Rule Out Theme-Template ConflictsPhase 2

Temporarily activate the default Twenty Twenty-Four core theme. If the issue disappears, your theme template overrides are the root cause.

Deactivate First Half of Plugins (14 plugins)Phase 3

Instead of testing 28 plugins linearly, deactivate half. If the issue resolves, the offending plugin is in the deactivated group.

Bisect & Narrow Suspect GroupPhase 3

Re-enable half of the remaining suspects. Repeat the test cycle until exactly 1 plugin triggers the error condition.

Purge LiteSpeed Cache and Expired TransientsPhase 4

Outdated object cache keys or corrupted transients in wp_options can preserve bugs even after a plugin is deactivated.

Identify Incompatible Hook / DependencyPhase 5

Inspect the culprit plugin's changelog, recent PHP 8.x deprecated functions, or missing REST API endpoints.

Deploy Pinned Version or HotfixPhase 5

Reinstall the previous stable release zip from WordPress.org repository.

How to use this tool

1. Select Incident Type & Symptoms

Choose your primary issue: Fatal Error (White Screen of Death), WooCommerce Checkout Failure, REST API / Gutenberg Block Error, or Slow Admin Dashboard.

2. Define Server & Access Environment

Specify your hosting access tier (WP-Admin Only, FTP/SFTP, SSH/WP-CLI, or Staging Site available) and your active caching setup.

3. Generate Tailored Diagnostic Runbook

Review a customized 5-phase troubleshooting plan employing safe mode activation, error log discovery, and binary search plugin isolation.

4. Track Progress & Copy Command Scripts

Check off completed tasks with real-time percentage progress, copy automated WP-CLI diagnostic commands, or export the checklist as Markdown.

Formula or logic used

Binary Search Plugin Isolation & Safe Debugging Methodology

Calculates the maximum number of test iterations needed to isolate an active plugin conflict using logarithmic binary search (O(log2 n)).

  • Binary Search Efficiency: With 32 active plugins, binary search isolates the offending plugin in just 5 deactivation tests (log2 32 = 5) versus 32 linear tests
  • Phase 1 - Damage Control: Enable WP_DEBUG_LOG, check wp-content/debug.log, and activate maintenance mode or recovery mode
  • Phase 2 - Theme Isolation: Switch temporarily to a default core theme (Twenty Twenty-Four) to eliminate theme-template override conflicts
  • Phase 3 - Halving Deactivations: Deactivate half the plugins; if the error disappears, the culprit is in the deactivated half; repeat recursively
  • Phase 4 - Caching & Transients Purge: Clear Redis/Memcached object cache and delete expired transients from the wp_options table

Examples

Example 1: WooCommerce Checkout 500 Fatal Error (Production Site)

Input: Symptom: Ajax checkout fails; Access: SSH / WP-CLI; Plugins: 28 active; Cache: Redis + Cloudflare
Calculated Result: Custom emergency runbook prioritizing WP_DEBUG logging, staging reproduction, and WP-CLI dry-run deactivation

Prevents customer transaction loss by testing checkout endpoints in staging before modifying live plugins.

Example 2: Admin White Screen of Death (Locked Out of WP-Admin)

Input: Symptom: HTTP 500 White Screen on /wp-admin/; Access: SFTP and Hosting File Manager
Calculated Result: Step-by-step recovery guide for renaming the /wp-content/plugins/ directory to trigger core fail-safe deactivation

Regains immediate administrative access within minutes without requiring database queries.

Common use cases

Recovering from White Screen of Death (WSOD)

Regain admin dashboard access when a fatal PHP error locks developers out of WordPress.

WooCommerce Payment Gateway Breakage

Quickly identify JavaScript or REST API conflicts that prevent customer orders from completing.

Plugin & WordPress Core Upgrade Verification

Follow a disciplined checklist when upgrading major WooCommerce or WordPress core versions.

Agency Client Handover & Emergency Triage

Standardize troubleshooting runbooks for junior developers and support engineers handling client bug tickets.

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Frequently asked questions

How do I view error details when WordPress displays a blank white screen?

Open `wp-config.php` via FTP or File Manager and set: `define('WP_DEBUG', true);` and `define('WP_DEBUG_LOG', true);` and `define('WP_DEBUG_DISPLAY', false);`. Then check `/wp-content/debug.log` for the exact file name and line number causing the crash.

Will deactivating plugins delete my settings or data?

In 99% of reputable WordPress plugins, simply deactivating a plugin leaves its database tables and configuration settings intact. Only clicking 'Delete' or running an uninstall routine purges plugin data.

How does the binary search method work for plugins?

Instead of testing plugins one by one, deactivate half of your plugins at once. If the issue resolves, the problem plugin is in that half. Repeat by halving the suspect group until only one plugin remains. It finds conflicts exponentially faster.

What WP-CLI command deactivates all plugins safely?

Run `wp plugin deactivate --all` via SSH to immediately deactivate all plugins, or `wp plugin deactivate plugin-slug` for individual targets.

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