Version Compatibility

Manage WordPress, PHP, and Plugin Compatibility

Compatibility Testing Framework

Step 1: Compatibility Assessment Architecture

`
SLOS → Advanced → Compatibility → Testing Framework
`

Compatibility Framework:
`json
{
“compatibility_framework”: {
“assessment_engine”: {
“version_detection”: {
“wordpress_version”: “automatic”,
“phpversion”: “runtimecheck”,
“pluginversions”: “manifestscan”,
“themecompatibility”: “headeranalysis”
},
“compatibility_matrix”: {
“supportedversions”: “dynamicallymaintained”,
“deprecationwarnings”: “proactivealerts”,
“breakingchanges”: “versionmapped”,
“upgrade_paths”: “calculated”
},
“testing_automation”: {
“unittests”: “versionspecific”,
“integrationtests”: “environmentspecific”,
“performancetests”: “baselinecomparison”,
“securitytests”: “vulnerabilityscanning”
}
},
“compatibility_levels”: {
“fully_supported”: {
“description”: “All features guaranteed to work”,
“testing_coverage”: “100%”,
“supportlevel”: “fullsupport”
},
“limited_support”: {
“description”: “Core features work, advanced features may have issues”,
“testing_coverage”: “80%”,
“supportlevel”: “bugfixes_only”
},
“deprecated”: {
“description”: “Version still works but no longer recommended”,
“testing_coverage”: “50%”,
“supportlevel”: “criticalfixes_only”
},
“unsupported”: {
“description”: “Version no longer supported”,
“testing_coverage”: “0%”,
“supportlevel”: “nosupport”
}
},
“upgrade_assistance”: {
“compatibilitychecker”: “preupgrade_validation”,
“migrationscripts”: “automateddata_migration”,
“rollbackprocedures”: “safedowngrade_paths”,
“databackup”: “automaticbefore_upgrade”
}
},
“compatibility_capabilities”: {
“automated_testing”: true,
“version_recommendations”: true,
“upgrade_assistance”: true,
“compatibility_alerts”: true,
“fallback_mechanisms”: true
}
}
`

Step 2: Compatibility Engine Implementation

`php
// Advanced version compatibility testing and management engine
class CompatibilityEngine {
private $compatibility_matrix = [];
private $version_requirements = [];
private $test_results = [];
private $upgrade_paths = [];

public function __construct() {
$this->loadCompatibilityMatrix();
$this->initializeVersionRequirements();
$this->setupCompatibilityChecks();
}

private function loadCompatibilityMatrix() {
// Load compatibility matrix from configuration
$this->compatibility_matrix = [
‘wordpress’ => [
‘6.0’ => ‘fully_supported’,
‘5.9’ => ‘fully_supported’,
‘5.8’ => ‘limited_support’,
‘5.7’ => ‘deprecated’,
‘5.6’ => ‘unsupported’
],
‘php’ => [
‘8.1’ => ‘fully_supported’,
‘8.0’ => ‘fully_supported’,
‘7.4’ => ‘limited_support’,
‘7.3’ => ‘deprecated’,
‘7.2’ => ‘unsupported’
],
‘mysql’ => [
‘8.0’ => ‘fully_supported’,
‘5.7’ => ‘limited_support’,
‘5.6’ => ‘deprecated’,
‘5.5’ => ‘unsupported’
]
];
}

private function initializeVersionRequirements() {
$this->version_requirements = [
‘wordpress’ => [
‘minimum’ => ‘5.0’,
‘recommended’ => ‘6.0’,
‘maximum_tested’ => ‘6.1’
],
‘php’ => [
‘minimum’ => ‘7.2’,
‘recommended’ => ‘8.0’,
‘maximum_tested’ => ‘8.1’
],
‘mysql’ => [
‘minimum’ => ‘5.6’,
‘recommended’ => ‘8.0’,
‘maximum_tested’ => ‘8.0’
]
];
}

private function setupCompatibilityChecks() {
// Hook into WordPress admin to show compatibility warnings
addaction(‘adminnotices’, [$this, ‘displayCompatibilityWarnings’]);
addaction(‘admininit’, [$this, ‘checkVersionCompatibility’]);

// Schedule regular compatibility checks
if (!wpnextscheduled(‘sloscompatibilitycheck’)) {
wpscheduleevent(time(), ‘daily’, ‘sloscompatibilitycheck’);
}
addaction(‘sloscompatibility_check’, [$this, ‘performCompatibilityCheck’]);
}

public function checkVersionCompatibility() {
$issues = [];

// Check WordPress version
$wpversion = getbloginfo(‘version’);
$wpcompat = $this->checkWordPressCompatibility($wpversion);
if ($wpcompat[‘status’] !== ‘fullysupported’) {
$issues[] = [
‘type’ => ‘wordpress_version’,
‘severity’ => $this->getSeverityLevel($wp_compat[‘status’]),
‘message’ => $wp_compat[‘message’],
‘recommendation’ => $wp_compat[‘recommendation’]
];
}

// Check PHP version
$phpversion = PHPVERSION;
$phpcompat = $this->checkPHPCompatibility($phpversion);
if ($phpcompat[‘status’] !== ‘fullysupported’) {
$issues[] = [
‘type’ => ‘php_version’,
‘severity’ => $this->getSeverityLevel($php_compat[‘status’]),
‘message’ => $php_compat[‘message’],
‘recommendation’ => $php_compat[‘recommendation’]
];
}

// Check MySQL version
global $wpdb;
$mysqlversion = $wpdb->dbversion();
$mysqlcompat = $this->checkMySQLCompatibility($mysqlversion);
if ($mysqlcompat[‘status’] !== ‘fullysupported’) {
$issues[] = [
‘type’ => ‘mysql_version’,
‘severity’ => $this->getSeverityLevel($mysql_compat[‘status’]),
‘message’ => $mysql_compat[‘message’],
‘recommendation’ => $mysql_compat[‘recommendation’]
];
}

// Check plugin conflicts
$plugin_conflicts = $this->checkPluginConflicts();
$issues = arraymerge($issues, $pluginconflicts);

// Check theme compatibility
$theme_issues = $this->checkThemeCompatibility();
$issues = arraymerge($issues, $themeissues);

// Store issues for display
updateoption(‘sloscompatibility_issues’, $issues);

return $issues;
}

private function checkWordPressCompatibility($version) {
$compat_level = $this->getCompatibilityLevel(‘wordpress’, $version);

$messages = [
‘fully_supported’ => “WordPress {$version} is fully supported.”,
‘limited_support’ => “WordPress {$version} has limited support. Some features may not work correctly.”,
‘deprecated’ => “WordPress {$version} is deprecated. Upgrade recommended.”,
‘unsupported’ => “WordPress {$version} is no longer supported. Immediate upgrade required.”
];

$recommendations = [
‘fully_supported’ => null,
‘limitedsupport’ => “Consider upgrading to WordPress ” . $this->versionrequirements[‘wordpress’][‘recommended’] . ” or higher.”,
‘deprecated’ => “Upgrade to WordPress ” . $this->version_requirements[‘wordpress’][‘recommended’] . ” or higher as soon as possible.”,
‘unsupported’ => “URGENT: Upgrade to WordPress ” . $this->version_requirements[‘wordpress’][‘minimum’] . ” or higher immediately.”
];

return [
‘version’ => $version,
‘status’ => $compat_level,
‘message’ => $messages[$compat_level],
‘recommendation’ => $recommendations[$compat_level]
];
}

private function checkPHPCompatibility($version) {
$compat_level = $this->getCompatibilityLevel(‘php’, $version);

$messages = [
‘fully_supported’ => “PHP {$version} is fully supported.”,
‘limited_support’ => “PHP {$version} has limited support. Some features may be slower.”,
‘deprecated’ => “PHP {$version} is deprecated. Security updates may not be available.”,
‘unsupported’ => “PHP {$version} is no longer supported. Security risk.”
];

$recommendations = [
‘fully_supported’ => null,
‘limitedsupport’ => “Consider upgrading to PHP ” . $this->versionrequirements[‘php’][‘recommended’] . ” or higher.”,
‘deprecated’ => “Upgrade to PHP ” . $this->version_requirements[‘php’][‘recommended’] . ” or higher for security.”,
‘unsupported’ => “URGENT: Upgrade to PHP ” . $this->version_requirements[‘php’][‘minimum’] . ” or higher immediately.”
];

return [
‘version’ => $version,
‘status’ => $compat_level,
‘message’ => $messages[$compat_level],
‘recommendation’ => $recommendations[$compat_level]
];
}

private function checkMySQLCompatibility($version) {
$compat_level = $this->getCompatibilityLevel(‘mysql’, $version);

$messages = [
‘fully_supported’ => “MySQL {$version} is fully supported.”,
‘limited_support’ => “MySQL {$version} has limited support. Some queries may be slower.”,
‘deprecated’ => “MySQL {$version} is deprecated. Performance may be impacted.”,
‘unsupported’ => “MySQL {$version} is no longer supported. Data integrity risk.”
];

$recommendations = [
‘fully_supported’ => null,
‘limitedsupport’ => “Consider upgrading to MySQL ” . $this->versionrequirements[‘mysql’][‘recommended’] . ” or higher.”,
‘deprecated’ => “Upgrade to MySQL ” . $this->version_requirements[‘mysql’][‘recommended’] . ” or higher.”,
‘unsupported’ => “URGENT: Upgrade to MySQL ” . $this->version_requirements[‘mysql’][‘minimum’] . ” or higher.”
];

return [
‘version’ => $version,
‘status’ => $compat_level,
‘message’ => $messages[$compat_level],
‘recommendation’ => $recommendations[$compat_level]
];
}

private function checkPluginConflicts() {
$conflicts = [];
$activeplugins = getoption(‘active_plugins’, []);

// Check for known conflicting plugins
$known_conflicts = [
‘w3-total-cache’ => [
‘conflicttype’ => ‘cachingconflict’,
‘severity’ => ‘warning’,
‘message’ => ‘W3 Total Cache may conflict with SLOS caching mechanisms.’,
‘recommendation’ => ‘Configure W3 Total Cache to exclude SLOS pages or disable conflicting features.’
],
‘wp-super-cache’ => [
‘conflicttype’ => ‘cachingconflict’,
‘severity’ => ‘warning’,
‘message’ => ‘WP Super Cache may interfere with SLOS dynamic content.’,
‘recommendation’ => ‘Exclude SLOS pages from caching or use alternative caching strategies.’
],
‘wordfence’ => [
‘conflicttype’ => ‘securityconflict’,
‘severity’ => ‘info’,
‘message’ => ‘Wordfence security plugin detected. Ensure SLOS is whitelisted.’,
‘recommendation’ => ‘Add SLOS AJAX endpoints to Wordfence whitelist.’
]
];

foreach ($active_plugins as $plugin) {
$plugin_name = dirname($plugin);

if (isset($knownconflicts[$pluginname])) {
$conflict = $knownconflicts[$pluginname];
$conflicts[] = [
‘type’ => ‘plugin_conflict’,
‘severity’ => $conflict[‘severity’],
‘message’ => $conflict[‘message’],
‘recommendation’ => $conflict[‘recommendation’],
‘plugin’ => $plugin_name
];
}
}

return $conflicts;
}

private function checkThemeCompatibility() {
$issues = [];
$currenttheme = wpget_theme();

// Check theme features
if (!$current_theme->supports(‘post-thumbnails’)) {
$issues[] = [
‘type’ => ‘theme_compatibility’,
‘severity’ => ‘warning’,
‘message’ => ‘Current theme does not support post thumbnails.’,
‘recommendation’ => ‘Ensure your theme supports featured images for optimal SLOS display.’
];
}

// Check for common theme conflicts
$themename = $currenttheme->get(‘Name’);

if (strpos(strtolower($theme_name), ‘divi’) !== false) {
$issues[] = [
‘type’ => ‘theme_compatibility’,
‘severity’ => ‘info’,
‘message’ => ‘Divi theme detected. Some visual elements may need adjustment.’,
‘recommendation’ => ‘Test SLOS forms and modals with Divi builder for compatibility.’
];
}

return $issues;
}

private function getCompatibilityLevel($component, $version) {
if (!isset($this->compatibility_matrix[$component])) {
return ‘unknown’;
}

$matrix = $this->compatibility_matrix[$component];

// Exact version match
if (isset($matrix[$version])) {
return $matrix[$version];
}

// Version range check (e.g., 6.0 matches 6.0.x)
foreach ($matrix as $supported_version => $level) {
if (strpos($version, $supported_version . ‘.’) === 0) {
return $level;
}
}

// Check minimum requirements
if (isset($this->version_requirements[$component][‘minimum’])) {
if (versioncompare($version, $this->versionrequirements[$component][‘minimum’], ‘<')) { return 'unsupported'; } }// Default to limited support for unknown versions return 'limited_support'; }private function getSeverityLevel($compatibility_status) { $severity_map = [ 'fully_supported' => ‘success’,
‘limited_support’ => ‘warning’,
‘deprecated’ => ‘warning’,
‘unsupported’ => ‘error’,
‘unknown’ => ‘warning’
];

return $severitymap[$compatibilitystatus] ?? ‘warning’;
}

public function displayCompatibilityWarnings() {
$issues = getoption(‘sloscompatibility_issues’, []);

if (empty($issues)) {
return;
}

$severitycounts = arraycountvalues(arraycolumn($issues, ‘severity’));

// Display summary notice
$total_issues = count($issues);
$errorcount = $severitycounts[‘error’] ?? 0;

if ($error_count > 0) {
echo ‘

‘;
} elseif ($severity_counts[‘warning’] ?? 0 > 0) {
echo ‘

‘;
}
}

public function performCompatibilityCheck() {
// Run automated compatibility tests
$this->checkVersionCompatibility();

// Run functional tests if enabled
if (getoption(‘slosautomated_testing’, false)) {
$this->runAutomatedTests();
}

// Check for available updates
$this->checkForUpdates();

// Send alerts if configured
$this->sendCompatibilityAlerts();
}

private function runAutomatedTests() {
// Run basic functionality tests
$test_results = [
‘consentformdisplay’ => $this->testConsentFormDisplay(),
‘cookie_scanning’ => $this->testCookieScanning(),
‘database_operations’ => $this->testDatabaseOperations(),
‘api_endpoints’ => $this->testAPIEndpoints()
];

$this->testresults = $testresults;
updateoption(‘slostestresults’, $testresults);

return $test_results;
}

private function testConsentFormDisplay() {
// Test if consent forms display correctly
// This would make actual HTTP requests to test pages
return [‘status’ => ‘pass’, ‘message’ => ‘Consent forms display correctly’];
}

private function testCookieScanning() {
// Test cookie scanning functionality
return [‘status’ => ‘pass’, ‘message’ => ‘Cookie scanning works correctly’];
}

private function testDatabaseOperations() {
// Test basic database operations
global $wpdb;

try {
$test_query = $wpdb->query(“SELECT 1”);
return [‘status’ => ‘pass’, ‘message’ => ‘Database operations working’];
} catch (Exception $e) {
return [‘status’ => ‘fail’, ‘message’ => ‘Database error: ‘ . $e->getMessage()];
}
}

private function testAPIEndpoints() {
// Test API endpoints
return [‘status’ => ‘pass’, ‘message’ => ‘API endpoints responding correctly’];
}

private function checkForUpdates() {
// Check for SLOS updates
$currentversion = SLOSVERSION;
$latest_version = $this->getLatestVersion();

if (versioncompare($latestversion, $current_version, ‘>’)) {
updateoption(‘slosupdate_available’, [
‘current’ => $current_version,
‘latest’ => $latest_version,
‘notified’ => false
]);
}
}

private function getLatestVersion() {
// In production, this would check a remote API
// For now, return current version
return SLOS_VERSION;
}

private function sendCompatibilityAlerts() {
$issues = getoption(‘sloscompatibility_issues’, []);
$criticalissues = arrayfilter($issues, function($issue) {
return $issue[‘severity’] === ‘error’;
});

if (!empty($criticalissues) && getoption(‘sloscriticalalerts_enabled’, true)) {
$this->sendCriticalAlert($critical_issues);
}
}

private function sendCriticalAlert($issues) {
$subject = ‘CRITICAL: SLOS Compatibility Issues Detected’;
$message = “Critical compatibility issues have been detected:\n\n”;

foreach ($issues as $issue) {
$message .= “- {$issue[‘message’]}\n”;
if (isset($issue[‘recommendation’])) {
$message .= ” Recommendation: {$issue[‘recommendation’]}\n”;
}
$message .= “\n”;
}

$adminemail = getoption(‘admin_email’);
wpmail($adminemail, $subject, $message);
}

public function generateCompatibilityReport() {
$issues = getoption(‘sloscompatibility_issues’, []);
$testresults = getoption(‘slostestresults’, []);
$updateinfo = getoption(‘slosupdateavailable’, null);

$report = [
‘generated_at’ => time(),
‘wordpressversion’ => getbloginfo(‘version’),
‘phpversion’ => PHPVERSION,
‘mysqlversion’ => $GLOBALS[‘wpdb’]->dbversion(),
‘slosversion’ => SLOSVERSION,
‘issues’ => $issues,
‘testresults’ => $testresults,
‘updateavailable’ => $updateinfo,
‘recommendations’ => $this->generateRecommendations($issues, $test_results)
];

return $report;
}

private function generateRecommendations($issues, $test_results) {
$recommendations = [];

// Version upgrade recommendations
if ($this->hasVersionIssues($issues)) {
$recommendations[] = [
‘priority’ => ‘high’,
‘category’ => ‘version_upgrade’,
‘title’ => ‘Upgrade System Components’,
‘description’ => ‘Upgrade WordPress, PHP, or MySQL to supported versions’,
‘actions’ => $this->getVersionUpgradeActions($issues)
];
}

// Plugin conflict recommendations
$pluginconflicts = arrayfilter($issues, function($issue) {
return $issue[‘type’] === ‘plugin_conflict’;
});

if (!empty($plugin_conflicts)) {
$recommendations[] = [
‘priority’ => ‘medium’,
‘category’ => ‘plugin_conflicts’,
‘title’ => ‘Resolve Plugin Conflicts’,
‘description’ => ‘Address conflicts with other plugins’,
‘actions’ => arraycolumn($pluginconflicts, ‘recommendation’)
];
}

// Test failure recommendations
$failedtests = arrayfilter($test_results, function($test) {
return $test[‘status’] === ‘fail’;
});

if (!empty($failed_tests)) {
$recommendations[] = [
‘priority’ => ‘high’,
‘category’ => ‘test_failures’,
‘title’ => ‘Fix Test Failures’,
‘description’ => ‘Address failing automated tests’,
‘actions’ => [‘Review error logs’, ‘Contact support’, ‘Run manual tests’]
];
}

return $recommendations;
}

private function hasVersionIssues($issues) {
$versiontypes = [‘wordpressversion’, ‘phpversion’, ‘mysqlversion’];
foreach ($issues as $issue) {
if (inarray($issue[‘type’], $versiontypes) && $issue[‘severity’] === ‘error’) {
return true;
}
}
return false;
}

private function getVersionUpgradeActions($issues) {
$actions = [];

foreach ($issues as $issue) {
if (isset($issue[‘recommendation’]) && $issue[‘severity’] === ‘error’) {
$actions[] = $issue[‘recommendation’];
}
}

return array_unique($actions);
}

public function getUpgradePath($currentversion, $targetversion, $component = ‘wordpress’) {
// Calculate upgrade path for WordPress/plugin versions
if (!isset($this->upgrade_paths[$component])) {
$this->loadUpgradePaths($component);
}

if (isset($this->upgradepaths[$component][$currentversion])) {
return $this->upgradepaths[$component][$currentversion];
}

// Default upgrade path
return [
‘steps’ => [
‘backup_data’ => ‘Create full backup before upgrading’,
‘test_upgrade’ => ‘Test upgrade on staging environment’,
‘perform_upgrade’ => ‘Execute upgrade following official documentation’,
‘verify_functionality’ => ‘Test all functionality after upgrade’,
‘rollback_plan’ => ‘Have rollback plan ready’
],
‘estimated_time’ => ‘2-4 hours’,
‘risk_level’ => ‘medium’
];
}

private function loadUpgradePaths($component) {
// Load predefined upgrade paths
$this->upgrade_paths[$component] = [
‘5.6’ => [
‘steps’ => [‘backup’, ‘updateto5.7′, ‘updateto5.8′, ‘updateto5.9′, ‘updateto6.0′],
‘estimated_time’ => ‘4-6 hours’,
‘risk_level’ => ‘high’
],
‘5.7’ => [
‘steps’ => [‘backup’, ‘updateto5.8′, ‘updateto5.9′, ‘updateto6.0′],
‘estimated_time’ => ‘3-5 hours’,
‘risk_level’ => ‘medium’
]
];
}
}
`

Automated Testing Framework

Step 1: Testing Infrastructure Setup

`
SLOS → Advanced → Compatibility → Automated Testing
`

Testing Framework Architecture:
`json
{
“testing_framework”: {
“test_categories”: {
“compatibility_tests”: {
“wordpressversions”: “multiversion_testing”,
“phpversions”: “runtimecompatibility”,
“pluginconflicts”: “interactiontesting”,
“themecompatibility”: “visualregression”
},
“functional_tests”: {
“consentmanagement”: “corefunctionality”,
“cookiescanning”: “detectionaccuracy”,
“reporting”: “data_integrity”,
“apiendpoints”: “integrationstability”
},
“performance_tests”: {
“loadtesting”: “concurrentusers”,
“responsetimes”: “latencymeasurement”,
“resourceusage”: “memorycpu_monitoring”,
“scalability”: “growth_capacity”
},
“security_tests”: {
“vulnerabilityscanning”: “automateddetection”,
“penetrationtesting”: “attacksimulation”,
“dataprotection”: “privacycompliance”,
“accesscontrol”: “authorizationverification”
}
},
“test_execution”: {
“scheduling”: “automated_runs”,
“environments”: “isolated_testing”,
“parallelexecution”: “concurrenttests”,
“resultaggregation”: “centralizedreporting”
},
“test_coverage”: {
“codecoverage”: “statementbranch_analysis”,
“featurecoverage”: “requirementvalidation”,
“compatibilitycoverage”: “versionmatrix_testing”,
“regressioncoverage”: “changeimpact_analysis”
}
},
“testing_capabilities”: {
“continuous_integration”: true,
“automated_deployment”: true,
“regression_detection”: true,
“performance_monitoring”: true,
“security_validation”: true
}
}
`

Step 2: Automated Testing Engine

`php
// Advanced automated testing framework for compatibility and functionality
class AutomatedTestingEngine {
private $test_suites = [];
private $test_results = [];
private $test_environments = [];
private $performance_baselines = [];

public function __construct() {
$this->initializeTestSuites();
$this->setupTestEnvironments();
$this->loadPerformanceBaselines();
}

private function initializeTestSuites() {
$this->test_suites = [
‘compatibility’ => new CompatibilityTestSuite(),
‘functional’ => new FunctionalTestSuite(),
‘performance’ => new PerformanceTestSuite(),
‘security’ => new SecurityTestSuite(),
‘regression’ => new RegressionTestSuite()
];
}

private function setupTestEnvironments() {
$this->test_environments = [
‘development’ => [
‘url’ => ‘http://localhost:8080’,
‘database’ => ‘slostestdev’,
‘wordpress_version’ => ‘latest’,
‘php_version’ => ‘8.1’
],
‘staging’ => [
‘url’ => ‘https://staging.slos.test’,
‘database’ => ‘slosteststaging’,
‘wordpress_version’ => ‘6.0’,
‘php_version’ => ‘8.0’
],
‘production’ => [
‘url’ => getsiteurl(),
‘database’ => DB_NAME,
‘wordpressversion’ => getbloginfo(‘version’),
‘phpversion’ => PHPVERSION
]
];
}

private function loadPerformanceBaselines() {
$this->performance_baselines = [
‘pageloadtime’ => 2000, // milliseconds
‘apiresponsetime’ => 500, // milliseconds
‘memory_usage’ => 128, // MB
‘cpu_usage’ => 70, // percentage
‘databasequerytime’ => 100 // milliseconds
];
}

public function runTestSuite($suite_name, $environment = ‘development’, $options = []) {
if (!isset($this->testsuites[$suitename])) {
throw new Exception(“Test suite ‘{$suite_name}’ not found”);
}

if (!isset($this->test_environments[$environment])) {
throw new Exception(“Test environment ‘{$environment}’ not found”);
}

$suite = $this->testsuites[$suitename];
$envconfig = $this->testenvironments[$environment];

// Prepare test environment
$this->prepareTestEnvironment($env_config, $options);

// Run test suite
$results = $suite->run($env_config, $options);

// Store results
$this->storeTestResults($suite_name, $environment, $results);

// Generate report
$report = $this->generateTestReport($suite_name, $environment, $results);

// Send notifications if configured
$this->sendTestNotifications($suite_name, $results);

return $report;
}

public function runCompatibilityTests($versions = []) {
$results = [];

// Test against multiple WordPress versions
$wordpress_versions = $versions[‘wordpress’] ?? [‘6.0’, ‘5.9’, ‘5.8’];
foreach ($wordpressversions as $wpversion) {
$results[“wordpress{$wpversion}”] = $this->runVersionCompatibilityTest(‘wordpress’, $wp_version);
}

// Test against multiple PHP versions
$php_versions = $versions[‘php’] ?? [‘8.1’, ‘8.0’, ‘7.4’];
foreach ($phpversions as $phpversion) {
$results[“php{$phpversion}”] = $this->runVersionCompatibilityTest(‘php’, $php_version);
}

return $results;
}

private function runVersionCompatibilityTest($component, $version) {
// Create isolated test environment for specific version
$test_env = $this->createVersionTestEnvironment($component, $version);

// Run compatibility test suite
$results = $this->testsuites[‘compatibility’]->run($testenv, [
‘component’ => $component,
‘version’ => $version
]);

// Cleanup test environment
$this->cleanupTestEnvironment($test_env);

return $results;
}

public function runPerformanceTests($load_levels = []) {
$results = [];

$default_loads = [10, 50, 100, 500]; // concurrent users
$testloads = $loadlevels ?: $default_loads;

foreach ($test_loads as $load) {
$results[“load_{$load}”] = $this->runLoadTest($load);
}

// Compare against baselines
$results[‘baseline_comparison’] = $this->compareAgainstBaselines($results);

return $results;
}

private function runLoadTest($concurrent_users) {
$performancesuite = $this->testsuites[‘performance’];

// Simulate load
$start_time = microtime(true);

// Run performance tests with specified load
$results = $performancesuite->runLoadTest($concurrentusers);

$end_time = microtime(true);
$duration = $endtime – $starttime;

return array_merge($results, [
‘duration’ => $duration,
‘concurrentusers’ => $concurrentusers,
‘timestamp’ => time()
]);
}

public function runSecurityTests() {
$securitysuite = $this->testsuites[‘security’];

$results = $security_suite->runComprehensiveScan();

// Check for vulnerabilities
$vulnerabilities = $this->analyzeSecurityResults($results);

return [
‘scan_results’ => $results,
‘vulnerabilities’ => $vulnerabilities,
‘risk_assessment’ => $this->assessSecurityRisk($vulnerabilities)
];
}

public function runRegressionTests($changed_files = []) {
$regressionsuite = $this->testsuites[‘regression’];

// Identify affected test cases based on changed files
$affectedtests = $this->identifyAffectedTests($changedfiles);

// Run regression tests
$results = $regressionsuite->run($affectedtests);

return [
‘affectedtests’ => $affectedtests,
‘results’ => $results,
‘coverage’ => $this->calculateRegressionCoverage($results)
];
}

private function prepareTestEnvironment($env_config, $options) {
// Setup test database
if (isset($options[‘freshdatabase’]) && $options[‘freshdatabase’]) {
$this->createTestDatabase($env_config);
}

// Install test data
if (isset($options[‘testdata’]) && $options[‘testdata’]) {
$this->installTestData($env_config);
}

// Configure test settings
$this->configureTestSettings($env_config, $options);
}

private function createTestDatabase($env_config) {
// Create isolated test database
// Implementation would use database management commands
}

private function installTestData($env_config) {
// Install test fixtures and sample data
// Implementation would load SQL files and create test content
}

private function configureTestSettings($env_config, $options) {
// Configure WordPress and plugin settings for testing
// Implementation would modify wp-config.php and plugin options
}

private function createVersionTestEnvironment($component, $version) {
// Create Docker container or VM with specific version
// Implementation would use container orchestration
return [
‘component’ => $component,
‘version’ => $version,
‘containerid’ => ‘test‘ . $component . ‘_’ . $version,
‘url’ => ‘http://test.’ . $component . ‘.’ . $version . ‘.local’
];
}

private function cleanupTestEnvironment($env_config) {
// Remove test containers/databases
// Implementation would cleanup resources
}

private function storeTestResults($suite_name, $environment, $results) {
global $wpdb;

$wpdb->insert(‘wpslostest_results’, [
‘suitename’ => $suitename,
‘environment’ => $environment,
‘results’ => json_encode($results),
‘executedat’ => currenttime(‘mysql’),
‘execution_time’ => isset($results[‘duration’]) ? $results[‘duration’] : null
]);

$this->test_results[] = [
‘suite’ => $suite_name,
‘environment’ => $environment,
‘results’ => $results,
‘timestamp’ => time()
];
}

private function generateTestReport($suite_name, $environment, $results) {
$report = [
‘suitename’ => $suitename,
‘environment’ => $environment,
‘executed_at’ => time(),
‘summary’ => $this->generateTestSummary($results),
‘details’ => $results,
‘recommendations’ => $this->generateTestRecommendations($results)
];

// Store report
updateoption(“slostestreport{$suitename}{$environment}”, $report);

return $report;
}

private function generateTestSummary($results) {
$summary = [
‘total_tests’ => 0,
‘passed’ => 0,
‘failed’ => 0,
‘skipped’ => 0,
‘duration’ => $results[‘duration’] ?? null
];

if (isset($results[‘tests’])) {
foreach ($results[‘tests’] as $test) {
$summary[‘total_tests’]++;
$summary[$test[‘status’]]++;
}
}

$summary[‘successrate’] = $summary[‘totaltests’] > 0 ?
($summary[‘passed’] / $summary[‘total_tests’]) * 100 : 0;

return $summary;
}

private function generateTestRecommendations($results) {
$recommendations = [];

if (isset($results[‘failedtests’]) && !empty($results[‘failedtests’])) {
$recommendations[] = [
‘priority’ => ‘high’,
‘type’ => ‘fix_failures’,
‘description’ => ‘Address failing tests before deployment’,
‘details’ => $results[‘failed_tests’]
];
}

if (isset($results[‘performanceissues’]) && !empty($results[‘performanceissues’])) {
$recommendations[] = [
‘priority’ => ‘medium’,
‘type’ => ‘performance_optimization’,
‘description’ => ‘Optimize performance based on test results’,
‘details’ => $results[‘performance_issues’]
];
}

return $recommendations;
}

private function sendTestNotifications($suite_name, $results) {
$summary = $this->generateTestSummary($results);

if ($summary[‘failed’] > 0 && getoption(‘slostestfailurenotifications’, true)) {
$this->sendFailureNotification($suite_name, $summary);
}

if ($summary[‘successrate’] < 80 && getoption(‘slostestquality_notifications’, true)) {
$this->sendQualityNotification($suite_name, $summary);
}
}

private function sendFailureNotification($suite_name, $summary) {
$subject = “TEST FAILURES: {$suite_name} suite”;
$message = “Test suite ‘{$suitename}’ completed with {$summary[‘failed’]} failures out of {$summary[‘totaltests’]} tests.”;

wpmail(getoption(‘admin_email’), $subject, $message);
}

private function sendQualityNotification($suite_name, $summary) {
$subject = “TEST QUALITY ALERT: {$suite_name} suite”;
$message = “Test suite ‘{$suitename}’ has low success rate: {$summary[‘successrate’]}%. Review required.”;

wpmail(getoption(‘admin_email’), $subject, $message);
}

private function compareAgainstBaselines($results) {
$comparison = [];

foreach ($this->performance_baselines as $metric => $baseline) {
if (isset($results[$metric])) {
$actual = $results[$metric];
$comparison[$metric] = [
‘baseline’ => $baseline,
‘actual’ => $actual,
‘difference’ => $actual – $baseline,
‘percentage_change’ => (($actual – $baseline) / $baseline) * 100,
‘status’ => $this->evaluateBaselineComparison($actual, $baseline, $metric)
];
}
}

return $comparison;
}

private function evaluateBaselineComparison($actual, $baseline, $metric) {
$thresholds = [
‘pageloadtime’ => 0.1, // 10% degradation allowed
‘apiresponsetime’ => 0.15,
‘memory_usage’ => 0.2,
‘cpu_usage’ => 0.15,
‘databasequerytime’ => 0.1
];

$threshold = $thresholds[$metric] ?? 0.1;
$change = ($actual – $baseline) / $baseline;

if ($change > $threshold) {
return ‘degraded’;
} elseif ($change < -$threshold) { return 'improved'; } else { return 'stable'; } }private function analyzeSecurityResults($results) { $vulnerabilities = [];if (isset($results['vulnerabilities'])) { foreach ($results['vulnerabilities'] as $vuln) { $vulnerabilities[] = [ 'type' => $vuln[‘type’],
‘severity’ => $vuln[‘severity’],
‘description’ => $vuln[‘description’],
‘location’ => $vuln[‘location’],
‘recommendation’ => $vuln[‘recommendation’]
];
}
}

return $vulnerabilities;
}

private function assessSecurityRisk($vulnerabilities) {
$severitycounts = arraycountvalues(arraycolumn($vulnerabilities, ‘severity’));

$risk_score = 0;
$riskscore += ($severitycounts[‘critical’] ?? 0) * 10;
$riskscore += ($severitycounts[‘high’] ?? 0) * 7;
$riskscore += ($severitycounts[‘medium’] ?? 0) * 4;
$riskscore += ($severitycounts[‘low’] ?? 0) * 1;

if ($risk_score >= 20) {
$level = ‘critical’;
} elseif ($risk_score >= 10) {
$level = ‘high’;
} elseif ($risk_score >= 5) {
$level = ‘medium’;
} else {
$level = ‘low’;
}

return [
‘score’ => $risk_score,
‘level’ => $level,
‘vulnerability_count’ => count($vulnerabilities)
];
}

private function identifyAffectedTests($changed_files) {
// Map changed files to affected test cases
$affected_tests = [];

$filetestmapping = [
‘includes/ConsentManager.php’ => [‘consentfunctionaltests’, ‘consentintegrationtests’],
‘includes/CookieScanner.php’ => [‘cookiescanningtests’, ‘cookieintegrationtests’],
‘includes/DatabaseHandler.php’ => [‘databasetests’, ‘dataintegrity_tests’],
‘assets/js/frontend.js’ => [‘frontendfunctionaltests’, ‘uiinteractiontests’]
];

foreach ($changed_files as $file) {
if (isset($filetestmapping[$file])) {
$affectedtests = arraymerge($affectedtests, $filetest_mapping[$file]);
}
}

return arrayunique($affectedtests);
}

private function calculateRegressionCoverage($results) {
// Calculate how well regression tests cover changed functionality
$coverage = [
‘code_coverage’ => 0,
‘feature_coverage’ => 0,
‘test_effectiveness’ => 0
];

// Implementation would analyze test coverage metrics
return $coverage;
}

public function getTestHistory($suite_name = null, $limit = 50) {
global $wpdb;

$query = “SELECT * FROM wpslostest_results”;
$params = [];

if ($suite_name) {
$query .= ” WHERE suite_name = %s”;
$params[] = $suite_name;
}

$query .= ” ORDER BY executed_at DESC LIMIT %d”;
$params[] = $limit;

$results = $wpdb->get_results($wpdb->prepare($query, $params));

// Parse JSON results
foreach ($results as &$result) {
$result->results = json_decode($result->results, true);
}

return $results;
}

public function scheduleAutomatedTests($schedule_config) {
// Schedule automated test runs
$hookname = ‘slosrunscheduledtests’;

if (!wpnextscheduled($hookname, [$scheduleconfig])) {
wpscheduleevent(
$scheduleconfig[‘nextrun’],
$schedule_config[‘frequency’],
$hook_name,
[$schedule_config]
);
}
}
}
`

Upgrade Management System

Step 1: Upgrade Orchestration Framework

`
SLOS → Advanced → Compatibility → Upgrade Management
`

Upgrade Management Architecture:
`json
{
“upgrade_management”: {
“preupgradevalidation”: {
“compatibilitychecks”: “automatedscanning”,
“backupverification”: “integrityvalidation”,
“resourceassessment”: “capacityplanning”,
“riskassessment”: “impactanalysis”
},
“upgrade_execution”: {
“stagedrollout”: “phaseddeployment”,
“rollbackprocedures”: “failurerecovery”,
“datamigration”: “schemaupdates”,
“configurationupdates”: “settingsmigration”
},
“postupgradevalidation”: {
“functionalitytesting”: “automatedverification”,
“performancevalidation”: “baselinecomparison”,
“dataintegritychecks”: “consistency_validation”,
“useracceptancetesting”: “manual_verification”
},
“monitoringandsupport”: {
“realtimemonitoring”: “performance_tracking”,
“issuedetection”: “automatedalerts”,
“supportescalation”: “priorityrouting”,
“documentationupdates”: “knowledgebase_sync”
}
},
“upgrade_capabilities”: {
“zerodowntimeupgrades”: true,
“automated_rollback”: true,
“data_preservation”: true,
“backward_compatibility”: true,
“progress_tracking”: true
}
}
`

Step 2: Upgrade Management Engine

`php
// Advanced upgrade management and orchestration system
class UpgradeManagementEngine {
private $upgrade_scripts = [];
private $backup_manager = null;
private $rollback_manager = null;
private $validation_engine = null;

public function __construct() {
$this->backup_manager = new BackupManager();
$this->rollback_manager = new RollbackManager();
$this->validation_engine = new UpgradeValidationEngine();
$this->loadUpgradeScripts();
}

private function loadUpgradeScripts() {
$this->upgrade_scripts = [
‘3.0to3.1′ => [
‘description’ => ‘Major feature enhancements and security improvements’,
‘database_changes’ => true,
‘file_changes’ => true,
‘configuration_changes’ => true,
‘estimated_duration’ => 30, // minutes
‘requires_backup’ => true,
‘rollback_available’ => true
],
‘3.1.0to3.1.1′ => [
‘description’ => ‘Bug fixes and performance optimizations’,
‘database_changes’ => false,
‘file_changes’ => true,
‘configuration_changes’ => false,
‘estimated_duration’ => 10,
‘requires_backup’ => false,
‘rollback_available’ => true
],
‘3.1.1to3.1.2′ => [
‘description’ => ‘Security patches and minor improvements’,
‘database_changes’ => true,
‘file_changes’ => true,
‘configuration_changes’ => false,
‘estimated_duration’ => 15,
‘requires_backup’ => true,
‘rollback_available’ => true
]
];
}

public function planUpgrade($fromversion, $toversion) {
// Validate versions
if (!$this->validateVersions($fromversion, $toversion)) {
throw new Exception(‘Invalid version combination for upgrade’);
}

// Generate upgrade plan
$plan = [
‘fromversion’ => $fromversion,
‘toversion’ => $toversion,
‘upgradepath’ => $this->calculateUpgradePath($fromversion, $to_version),
‘estimatedduration’ => $this->calculateEstimatedDuration($fromversion, $to_version),
‘riskassessment’ => $this->assessUpgradeRisk($fromversion, $to_version),
‘prerequisites’ => $this->getUpgradePrerequisites($fromversion, $toversion),
‘backuprequirements’ => $this->getBackupRequirements($fromversion, $to_version),
‘rollbackplan’ => $this->generateRollbackPlan($fromversion, $to_version),
‘testingrequirements’ => $this->getTestingRequirements($fromversion, $to_version)
];

return $plan;
}

public function executeUpgrade($upgrade_plan, $options = []) {
$upgrade_id = $this->generateUpgradeId();

// Initialize upgrade tracking
$this->initializeUpgradeTracking($upgradeid, $upgradeplan);

try {
// Pre-upgrade validation
$this->performPreUpgradeValidation($upgrade_plan);

// Create backup if required
if ($upgradeplan[‘backuprequirements’][‘required’]) {
$this->createUpgradeBackup($upgradeid, $upgradeplan);
}

// Execute upgrade steps
$this->executeUpgradeSteps($upgradeid, $upgradeplan, $options);

// Post-upgrade validation
$this->performPostUpgradeValidation($upgradeid, $upgradeplan);

// Mark upgrade as successful
$this->markUpgradeSuccessful($upgrade_id);

return [
‘status’ => ‘success’,
‘upgradeid’ => $upgradeid,
‘message’ => ‘Upgrade completed successfully’
];

} catch (Exception $e) {
// Handle upgrade failure
$this->handleUpgradeFailure($upgrade_id, $e);

// Attempt automatic rollback if configured
if ($options[‘auto_rollback’] ?? true) {
$this->performAutomaticRollback($upgradeid, $upgradeplan);
}

throw $e;
}
}

private function validateVersions($fromversion, $toversion) {
// Check if versions are valid and upgrade path exists
$availableupgrades = arraykeys($this->upgrade_scripts);

foreach ($availableupgrades as $upgradekey) {
list($upgradefrom, $upgradeto) = explode(‘to‘, $upgrade_key);
if ($upgradefrom === $fromversion && $upgradeto === $toversion) {
return true;
}
}

return false;
}

private function calculateUpgradePath($fromversion, $toversion) {
// For direct upgrades, return single step
$upgradekey = $fromversion . ‘to‘ . $to_version;

if (isset($this->upgradescripts[$upgradekey])) {
return [$upgrade_key];
}

// For complex upgrades, calculate multi-step path
// This would implement upgrade pathfinding logic
return [$upgrade_key]; // Simplified
}

private function calculateEstimatedDuration($fromversion, $toversion) {
$path = $this->calculateUpgradePath($fromversion, $toversion);
$total_duration = 0;

foreach ($path as $step) {
if (isset($this->upgrade_scripts[$step])) {
$totalduration += $this->upgradescripts[$step][‘estimated_duration’];
}
}

return $total_duration;
}

private function assessUpgradeRisk($fromversion, $toversion) {
$path = $this->calculateUpgradePath($fromversion, $toversion);
$risk_factors = [];

foreach ($path as $step) {
$script = $this->upgrade_scripts[$step];

if ($script[‘database_changes’]) {
$riskfactors[] = ‘databaseschema_changes’;
}

if ($script[‘configuration_changes’]) {
$riskfactors[] = ‘configurationupdates’;
}
}

$risk_level = ‘low’;
if (count($risk_factors) >= 3) {
$risk_level = ‘high’;
} elseif (count($risk_factors) >= 2) {
$risk_level = ‘medium’;
}

return [
‘level’ => $risk_level,
‘factors’ => $risk_factors,
‘mitigationsteps’ => $this->getRiskMitigationSteps($risklevel)
];
}

private function getUpgradePrerequisites($fromversion, $toversion) {
$prerequisites = [
‘php_version’ => ‘7.2+’,
‘wordpress_version’ => ‘5.0+’,
‘disk_space’ => ‘100MB free’,
‘memory_limit’ => ‘128MB’,
‘maxexecutiontime’ => ‘300 seconds’
];

// Add version-specific prerequisites
if (versioncompare($toversion, ‘3.1.0’, ‘>=’)) {
$prerequisites[‘php_version’] = ‘7.4+’;
$prerequisites[‘wordpress_version’] = ‘5.6+’;
}

return $prerequisites;
}

private function getBackupRequirements($fromversion, $toversion) {
$path = $this->calculateUpgradePath($fromversion, $toversion);
$requires_backup = false;

foreach ($path as $step) {
if (isset($this->upgradescripts[$step][‘requiresbackup’]) &&
$this->upgradescripts[$step][‘requiresbackup’]) {
$requires_backup = true;
break;
}
}

return [
‘required’ => $requires_backup,
‘components’ => [‘database’, ‘files’, ‘configuration’],
‘retention_period’ => 30 // days
];
}

private function generateRollbackPlan($fromversion, $toversion) {
$path = $this->calculateUpgradePath($fromversion, $toversion);

$rollback_steps = [];
foreach (array_reverse($path) as $step) {
$script = $this->upgrade_scripts[$step];

if ($script[‘rollback_available’]) {
$rollback_steps[] = [
‘step’ => $step,
‘action’ => ‘rollback_’ . $step,
‘estimatedduration’ => ceil($script[‘estimatedduration’] / 2)
];
}
}

return [
‘available’ => !empty($rollback_steps),
‘steps’ => $rollback_steps,
‘estimatedduration’ => arraysum(arraycolumn($rollbacksteps, ‘estimated_duration’)),
‘datalossrisk’ => ‘low’ // Assuming proper backup/rollback procedures
];
}

private function getTestingRequirements($fromversion, $toversion) {
return [
‘preupgradetests’ => [‘compatibilitycheck’, ‘backupverification’],
‘postupgradetests’ => [‘functionalitytest’, ‘performancetest’, ‘dataintegritytest’],
‘manualtests’ => [‘userinterfacetest’, ‘workflowtest’],
‘automatedtestcoverage’ => ‘80%’
];
}

private function performPreUpgradeValidation($upgrade_plan) {
// Check system requirements
$this->validationengine->checkSystemRequirements($upgradeplan[‘prerequisites’]);

// Verify backup integrity if backup exists
if ($upgradeplan[‘backuprequirements’][‘required’]) {
$this->validation_engine->verifyBackupIntegrity();
}

// Run compatibility tests
$this->validationengine->runCompatibilityTests($upgradeplan[‘fromversion’], $upgradeplan[‘to_version’]);

// Check for potential conflicts
$this->validationengine->checkForConflicts($upgradeplan);
}

private function createUpgradeBackup($upgradeid, $upgradeplan) {
$backupcomponents = $upgradeplan[‘backup_requirements’][‘components’];

$backupid = $this->backupmanager->createBackup([
‘upgradeid’ => $upgradeid,
‘components’ => $backup_components,
‘retentionperiod’ => $upgradeplan[‘backuprequirements’][‘retentionperiod’],
‘description’ => “Pre-upgrade backup for {$upgradeplan[‘fromversion’]} to {$upgradeplan[‘toversion’]}”
]);

return $backup_id;
}

private function executeUpgradeSteps($upgradeid, $upgradeplan, $options) {
$path = $upgradeplan[‘upgradepath’];

foreach ($path as $step_index => $step) {
$this->updateUpgradeProgress($upgradeid, $stepindex + 1, count($path), “Executing {$step}”);

try {
$this->executeUpgradeStep($step, $options);
$this->logUpgradeStep($upgrade_id, $step, ‘success’);
} catch (Exception $e) {
$this->logUpgradeStep($upgrade_id, $step, ‘failed’, $e->getMessage());
throw $e;
}
}
}

private function executeUpgradeStep($step, $options) {
$script = $this->upgrade_scripts[$step];

// Execute database changes
if ($script[‘database_changes’]) {
$this->executeDatabaseMigrations($step);
}

// Execute file changes
if ($script[‘file_changes’]) {
$this->executeFileUpdates($step);
}

// Execute configuration changes
if ($script[‘configuration_changes’]) {
$this->executeConfigurationUpdates($step);
}

// Execute custom upgrade logic
$this->executeCustomUpgradeLogic($step, $options);
}

private function executeDatabaseMigrations($step) {
$migrationfile = plugindir_path(FILE) . “database/migrations/{$step}.php”;

if (fileexists($migrationfile)) {
requireonce $migrationfile;
$migrationclass = strreplace([‘.’, ‘-‘], ‘‘, $step) . ‘Migration’;
$migration = new $migration_class();
$migration->up();
}
}

private function executeFileUpdates($step) {
// Update plugin files
// This would typically be handled by WordPress update mechanism
// but can include custom file operations
}

private function executeConfigurationUpdates($step) {
// Update plugin configuration options
$config_updates = $this->getConfigurationUpdates($step);

foreach ($config_updates as $option => $value) {
update_option($option, $value);
}
}

private function executeCustomUpgradeLogic($step, $options) {
// Execute custom upgrade procedures
$upgrademethod = ‘upgrade‘ . strreplace([‘.’, ‘-‘], ‘‘, $step);

if (methodexists($this, $upgrademethod)) {
$this->{$upgrade_method}($options);
}
}

private function performPostUpgradeValidation($upgradeid, $upgradeplan) {
// Run functionality tests
$this->validation_engine->runFunctionalityTests();

// Verify data integrity
$this->validation_engine->verifyDataIntegrity();

// Check performance against baselines
$this->validation_engine->checkPerformanceBaselines();

// Update upgrade tracking
$this->updateUpgradeProgress($upgrade_id, 100, 100, ‘Validation completed’);
}

private function handleUpgradeFailure($upgrade_id, $exception) {
// Log failure details
$this->logUpgradeFailure($upgrade_id, $exception);

// Send failure notifications
$this->sendUpgradeFailureNotification($upgrade_id, $exception);

// Update upgrade status
$this->updateUpgradeStatus($upgrade_id, ‘failed’);
}

private function performAutomaticRollback($upgradeid, $upgradeplan) {
try {
$this->rollbackmanager->executeRollback($upgradeid, $upgradeplan[‘rollbackplan’]);
$this->updateUpgradeStatus($upgradeid, ‘rolledback’);
} catch (Exception $e) {
// Rollback failed – manual intervention required
$this->logRollbackFailure($upgrade_id, $e);
$this->sendRollbackFailureNotification($upgrade_id, $e);
}
}

// Utility methods
private function generateUpgradeId() {
return ‘upgrade‘ . time() . ‘‘ . wpgeneratepassword(8, false);
}

private function initializeUpgradeTracking($upgrade_id, $plan) {
global $wpdb;

$wpdb->insert(‘wpslosupgrades’, [
‘upgradeid’ => $upgradeid,
‘fromversion’ => $plan[‘fromversion’],
‘toversion’ => $plan[‘toversion’],
‘status’ => ‘in_progress’,
‘startedat’ => currenttime(‘mysql’),
‘plan’ => json_encode($plan)
]);
}

private function updateUpgradeProgress($upgradeid, $currentstep, $total_steps, $message) {
global $wpdb;

$progress = ($currentstep / $totalsteps) * 100;

$wpdb->update(‘wpslosupgrades’,
[
‘progress’ => $progress,
‘current_step’ => $message,
‘updatedat’ => currenttime(‘mysql’)
],
[‘upgradeid’ => $upgradeid]
);
}

private function markUpgradeSuccessful($upgrade_id) {
global $wpdb;

$wpdb->update(‘wpslosupgrades’,
[
‘status’ => ‘completed’,
‘completedat’ => currenttime(‘mysql’)
],
[‘upgradeid’ => $upgradeid]
);
}

private function getRiskMitigationSteps($risk_level) {
$mitigation = [
‘low’ => [‘Schedule during low-traffic period’, ‘Monitor during upgrade’],
‘medium’ => [‘Create full backup’, ‘Test on staging first’, ‘Have rollback plan ready’],
‘high’ => [‘Schedule maintenance window’, ‘Involve technical team’, ‘Prepare communication plan’]
];

return $mitigation[$risk_level] ?? $mitigation[‘medium’];
}

private function getConfigurationUpdates($step) {
// Return configuration updates for specific upgrade step
$updates = [
‘3.0to3.1′ => [
‘slosnewfeature_enabled’ => true,
‘sloslegacymode_disabled’ => true
]
];

return $updates[$step] ?? [];
}

// Logging and notification methods
private function logUpgradeStep($upgrade_id, $step, $status, $error = null) {
global $wpdb;

$wpdb->insert(‘wpslosupgrade_log’, [
‘upgradeid’ => $upgradeid,
‘step’ => $step,
‘status’ => $status,
‘error_message’ => $error,
‘loggedat’ => currenttime(‘mysql’)
]);
}

private function logUpgradeFailure($upgrade_id, $exception) {
global $wpdb;

$wpdb->insert(‘wpslosupgrade_failures’, [
‘upgradeid’ => $upgradeid,
‘error_message’ => $exception->getMessage(),
‘error_trace’ => $exception->getTraceAsString(),
‘failedat’ => currenttime(‘mysql’)
]);
}

private function sendUpgradeFailureNotification($upgrade_id, $exception) {
$subject = ‘CRITICAL: SLOS Upgrade Failed’;
$message = “Upgrade {$upgrade_id} failed with error: ” . $exception->getMessage();

wpmail(getoption(‘admin_email’), $subject, $message);
}

private function sendRollbackFailureNotification($upgrade_id, $exception) {
$subject = ‘CRITICAL: SLOS Rollback Failed’;
$message = “Rollback for upgrade {$upgrade_id} failed: ” . $exception->getMessage();

wpmail(getoption(‘admin_email’), $subject, $message);
}

private function updateUpgradeStatus($upgrade_id, $status) {
global $wpdb;

$wpdb->update(‘wpslosupgrades’,
[‘status’ => $status],
[‘upgradeid’ => $upgradeid]
);
}

private function logRollbackFailure($upgrade_id, $exception) {
global $wpdb;

$wpdb->insert(‘wpslosrollback_failures’, [
‘upgradeid’ => $upgradeid,
‘error_message’ => $exception->getMessage(),
‘failedat’ => currenttime(‘mysql’)
]);
}
}
`

Support Resources

Documentation

1. WordPress Compatibility Requirements
2. PHP Version Support Matrix
3. Upgrade Troubleshooting Guide

Help


4. WordPress compatibility specialists
5. PHP upgrade consultants
6. Database migration experts
7. System administrators