<ul><li>PHASE 1 — FILE MAP: Mapped all TestimonialsManager module files: inc_testimonials_manager.php, page/testimonials.php, modals/modals.php, js/custom_js.php, catch/* files, controller/testimonial/TestimonialController.php, classes/testimonial/TestimonialModel.php.</li><li>BUG FIX (HIGH): <code>controller/testimonial/TestimonialController.php</code> line 170 — typo <code>return fasle;</code> in <code>validateUrl()</code> replaced with <code>return false;</code>. Would cause PHP undefined constant warning on URL validation failure path.</li><li>BUG FIX (MEDIUM): <code>platform/services/websites/modules/module/TestimonialsManager/page/testimonials.php</code> — <code>$rating</code> variable uninitialized when <code>$rate</code> is not 1–5 (e.g., NULL or 0). Added <code>else: $rating = N/A</code> default branch to prevent undefined variable warning.</li><li>BUG FIX (CASCADE): <code>classes/plugin_replace/PluginReplaceModel.php</code> lines 117-119 — <code>$_SERVER['HTTP_HOST']</code> accessed without null coalescing guard (PHP Warning in AJAX/controller context) and <code>explode('.', null)</code> Deprecated in PHP 8.1. Fixed with <code>?? ''</code> guard and explicit <code>(string)</code> cast.</li><li>SPEED FIX (N+1): <code>TestimonialController.php</code> — <code>getTestimonials()</code>, <code>getTestimonialsBySite()</code>, <code>getTestimonialsMember()</code> all executed N wasted DB calls per row calling <code>getWwbnAcounts(NULL)</code> when <code>activeacctid</code> is NULL. Added NULL guard with early continue to skip DB lookup entirely for NULL/empty activeacctid rows.</li><li>PERFORMANCE: Added <code>INDEX idx_sitelinkid_fk</code> on <code>domain_module_testimonials.sitelinkid_fk</code> — EXPLAIN confirmed rows scanned reduced from 20 to 5 (full scan to ref lookup).</li><li>PHASE 3 — CRUD TEST: All 4 CRUD operations verified via PHP CLI: createTestimonial (201 success), updateTestimonial (201 success), getTestimonialData (201 with correct data), deleteTestimonial (201 success). Validation tested: short testimonial correctly returns 400 warning.</li><li>PHASE 4 — QA: 0 PHP warnings, 0 PHP errors in runtime output after all fixes applied.</li></ul>