<h4>Modules Admin — Full PHP 8.1 Debug</h4><h5>Security Fixes</h5><ul><li><strong>CSRF bypass</strong> — <code>module.controller.php:23</code>: <code>&amp;&amp;</code> → <code>||</code></li><li><strong>SQL injection hardened</strong> — 12+ raw SQL queries in Module.class.php now use <code>intval()</code>: getPluginbyPlantype, getModulebyPlantype, getTemplateModule, filterByPortal, filterByCategory, moduleFilterAdmin, internalGetImagePath, getSubMenu, iweb_hs_categories, getAffiliateInfoCategories, getPurchasedModule</li></ul><h5>Fatal Error Fixes</h5><ul><li><strong>saveModule TypeError</strong> — <code>implode()</code> on <code>$p[13]</code> (module_type_key_fk) failed when jQuery sent single-select as string instead of array. Added <code>is_array()</code> guards on $p[13], $p[16], $p[19]</li><li><strong>ItemKeywords NOT NULL</strong> — addModule missing required fields <code>ItemKeywords</code> and <code>json_path</code>. Now set to empty string defaults</li><li><strong>$moduleShopQuery undefined</strong> — crud.php:218 used wrong variable name, changed to <code>$getItemList</code></li><li><strong>$db missing</strong> — Module.class.php filterByCategory() was missing <code>$db = Sdba::db()</code></li><li><strong>$value→$val</strong> — controller:996 used <code>$value</code> in <code>foreach($data1 as $key => $val)</code> loop</li><li><strong>Throwable catch</strong> — addmoduleAction/updateModuleAction wrapped in <code>try/catch(\Throwable)</code></li></ul><h5>Data Bug</h5><ul><li><strong>Color/Breed swap</strong> — crud.php:32-33 had Color←Age and Breed←Color</li></ul><h5>Undefined Array Key Fixes (40+)</h5><ul><li><strong>Controller</strong>: $r[isadmin], $r[ownership]×3, $r[modid], $r[module_id], $r[modcategoryid], $r[mid], $r[content], $r[moduleId], $r[param], $p[0-21], $r[revid], $r[module_ids], $r[removeShareCard], $r[qrimage], $r[category], $r[planId], $_SESSION[instance_planType], $_SESSION[YPTemplateID]</li><li><strong>Model</strong>: $_SESSION[SiteTemplateType], $_SESSION[YPTemplateID], $_SESSION[YPSiteLinkID], $data[template_type], $item[selected_cats]</li><li><strong>UI</strong>: $_SESSION[super_admin]×2, $_POST[action]×14 (crud.php), $_POST[module], $_POST[startingmodule], $_POST[siteid]</li></ul><h5>Null Return Safety</h5><ul><li>getMyMenus()[0] — 2 instances now use safe array access with fallback</li><li>getCategById() return — null coalesced on mod_category_name</li><li>configdata templating check — null guard added</li><li>array_sum on $monthlysum/$onetimesum — null coalescing on indices [0]/[1] (4 instances)</li><li>array_values on $retModules — null coalescing on nested keys (6 instances)</li><li>json_decode in implode — null guard added (3 instances)</li><li>Image array bounds — isset() added before [0], [1], [2] access</li><li>$_FILES[mod_sharecard] — isset() added</li></ul><h5>Variable Init</h5><ul><li>Module.class.php: filterByCategory() — 4 vars initialized; moduleFilterAdmin() — 5 vars initialized</li><li>deleteModuleRecord — replaced extract() with explicit var assignments, $log init changed from null to empty string</li></ul><h5>Verification</h5><p>All 14 AJAX endpoints tested: zero PHP warnings, zero fatal errors. saveModule (add + update) returns clean JSON.</p>