File: /home/mytest/.trash/clear_cache.php.93
<?php
/**
* Cache Clearing Utility
* Clears all possible PHP cache types including OPcache, APCu, file cache, and session data
*
* Usage: Access via browser at https://yourdomain.com/clear_cache.php
* For security, this file should be removed after use or protected with authentication
*/
header('Content-Type: text/html; charset=utf-8');
?>
<!DOCTYPE html>
<html>
<head>
<title>Cache Clearing Utility</title>
<style>
body { font-family: Arial, sans-serif; margin: 40px; background: #f5f5f5; }
.container { background: white; padding: 30px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); max-width: 800px; margin: 0 auto; }
h1 { color: #333; border-bottom: 2px solid #0a3758; padding-bottom: 10px; }
.success { color: #28a745; padding: 10px; background: #d4edda; border: 1px solid #c3e6cb; border-radius: 4px; margin: 10px 0; }
.error { color: #dc3545; padding: 10px; background: #f8d7da; border: 1px solid #f5c6cb; border-radius: 4px; margin: 10px 0; }
.info { color: #0c5460; padding: 10px; background: #d1ecf1; border: 1px solid #bee5eb; border-radius: 4px; margin: 10px 0; }
.section { margin: 20px 0; padding: 15px; background: #f8f9fa; border-left: 4px solid #0a3758; }
.section h3 { margin-top: 0; color: #0a3758; }
ul { line-height: 1.8; }
.timestamp { font-size: 0.9em; color: #666; margin-top: 20px; padding-top: 20px; border-top: 1px solid #ddd; }
</style>
</head>
<body>
<div class="container">
<h1>🧹 Cache Clearing Utility</h1>
<p>This utility clears all possible cache types in your PHP application.</p>
<?php
$results = [];
$errors = [];
// 1. Clear OPcache (PHP bytecode cache)
if (function_exists('opcache_reset')) {
if (opcache_reset()) {
$results[] = "✅ OPcache cleared successfully";
} else {
$errors[] = "❌ Failed to clear OPcache";
}
} else {
$results[] = "ℹ️ OPcache not available or not enabled";
}
// 2. Clear APCu cache (user cache)
if (function_exists('apcu_clear_cache')) {
if (apcu_clear_cache()) {
$results[] = "✅ APCu cache cleared successfully";
} else {
$errors[] = "❌ Failed to clear APCu cache";
}
} else {
$results[] = "ℹ️ APCu not available or not enabled";
}
// 3. Clear Realpath cache
clearstatcache(true);
$results[] = "✅ Realpath cache cleared";
// 4. Clear session data (current session only)
if (session_status() === PHP_SESSION_NONE) {
session_start();
}
$_SESSION = [];
if (ini_get("session.use_cookies")) {
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
session_destroy();
$results[] = "✅ Session data cleared";
// 5. Clear file-based cache directories (if they exist)
$cacheDirs = [
__DIR__ . '/cache',
__DIR__ . '/tmp',
__DIR__ . '/storage/cache',
__DIR__ . '/var/cache',
__DIR__ . '/data/cache'
];
$filesDeleted = 0;
foreach ($cacheDirs as $dir) {
if (is_dir($dir)) {
$files = glob($dir . '/*');
foreach ($files as $file) {
if (is_file($file) && basename($file) !== '.gitkeep') {
if (unlink($file)) {
$filesDeleted++;
}
}
}
}
}
if ($filesDeleted > 0) {
$results[] = "✅ Deleted $filesDeleted cache file(s)";
} else {
$results[] = "ℹ️ No cache files found to delete";
}
// 6. Clear output buffers
while (ob_get_level()) {
ob_end_clean();
}
$results[] = "✅ Output buffers cleared";
// 7. Force browser cache refresh headers
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
$results[] = "✅ Browser cache headers set";
// Display results
if (!empty($results)) {
echo '<div class="section">';
echo '<h3>✨ Cache Clearing Results</h3>';
echo '<ul>';
foreach ($results as $result) {
echo '<li>' . htmlspecialchars($result) . '</li>';
}
echo '</ul>';
echo '</div>';
}
if (!empty($errors)) {
echo '<div class="section">';
echo '<h3>⚠️ Errors Encountered</h3>';
echo '<ul>';
foreach ($errors as $error) {
echo '<li class="error">' . htmlspecialchars($error) . '</li>';
}
echo '</ul>';
echo '</div>';
}
// PHP Info
echo '<div class="section">';
echo '<h3>📊 PHP Cache Configuration</h3>';
echo '<ul>';
echo '<li><strong>OPcache Enabled:</strong> ' . (function_exists('opcache_get_status') && opcache_get_status() ? 'Yes' : 'No') . '</li>';
echo '<li><strong>APCu Enabled:</strong> ' . (function_exists('apcu_cache_info') ? 'Yes' : 'No') . '</li>';
echo '<li><strong>PHP Version:</strong> ' . PHP_VERSION . '</li>';
echo '<li><strong>Server Time:</strong> ' . date('Y-m-d H:i:s T') . '</li>';
echo '</ul>';
echo '</div>';
// Instructions
echo '<div class="info">';
echo '<h3>📝 Next Steps</h3>';
echo '<p><strong>To ensure complete cache clearing:</strong></p>';
echo '<ol>';
echo '<li>Hard refresh your browser (Ctrl+Shift+R or Cmd+Shift+R)</li>';
echo '<li>Clear your browser cache and cookies</li>';
echo '<li>If using a CDN or proxy (Cloudflare, etc.), purge the CDN cache</li>';
echo '<li>Restart your web server if possible (Apache/Nginx)</li>';
echo '<li><strong>For security:</strong> Delete this file after use or protect it with authentication</li>';
echo '</ol>';
echo '</div>';
?>
<div class="timestamp">
<strong>Cache cleared at:</strong> <?php echo date('Y-m-d H:i:s T'); ?>
</div>
</div>
</body>
</html>