✏ 编辑: cache.php

<?php
/**
 * Universal Cache Buster for AskManisha Website
 * 
 * Add this at the TOP of EVERY PHP file:
 * <?php require_once 'cache.php'; ?>
 * 
 * This file disables all caching to ensure immediate updates
 */

// Disable PHP OPcache
if (function_exists('opcache_reset')) {
    opcache_reset();
}
ini_set('opcache.enable', '0');
ini_set('opcache.enable_cli', '0');

// Disable browser caching with HTTP headers
header("Cache-Control: no-cache, no-store, must-revalidate, max-age=0");
header("Pragma: no-cache");
header("Expires: 0");

// Disable MySQL query cache if connection exists
if (isset($conn) && $conn instanceof mysqli) {
    $conn->query("SET SESSION query_cache_type = OFF");
}

// Start session properly if not already started
if (session_status() === PHP_SESSION_NONE) {
    session_start();
}

/**
 * Helper function to add cache-busting version to URLs
 * Usage: <link href="<?php echo cacheBust('style.css'); ?>">
 */
function cacheBust($url) {
    $separator = (strpos($url, '?') === false) ? '?' : '&';
    return $url . $separator . 'v=' . time();
}

/**
 * Helper function to get fresh data from database
 * Ensures no query result caching
 */
function getFreshQuery($conn, $query) {
    $result = $conn->query($query);
    if ($result && $result instanceof mysqli_result) {
        return $result;
    }
    return false;
}
?>

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