<?php
 
 
function restrictIPAccessWithRateLimit($allowedIPs, $limitTime = 60, $limitCount = 10) {
    $visitorIP = $_SERVER['REMOTE_ADDR']; // 獲取訪問(wèn)者的IP地址
    $currentTime = time(); // 當(dāng)前時(shí)間戳
 
    // 檢查IP地址是否在允許的列表中    *允許所有域名
    if ($allowedIPs!='*'&&!in_array($visitorIP, $allowedIPs)) {
        echo "Access denied!";
        exit;
    }
 
    // 使用IP地址和當(dāng)前時(shí)間戳生成唯一的計(jì)數(shù)器標(biāo)識(shí)符
    $counterKey = 'access_counter_' . $visitorIP;
 
    // 開啟Session
    session_start();
 
    // 從Session中獲取計(jì)數(shù)器值和過(guò)期時(shí)間
    $counter = isset($_SESSION[$counterKey]['value']) ? $_SESSION[$counterKey]['value'] : 0;
    $expireTime = isset($_SESSION[$counterKey]['expireTime']) ? $_SESSION[$counterKey]['expireTime'] : 0;
 
    // 檢查過(guò)期時(shí)間是否已過(guò)或計(jì)數(shù)器值是否超過(guò)限制
    if ($currentTime > $expireTime || $counter >= $limitCount) {
        echo "Access limit exceeded!";
        exit;
    }
 
    // 更新計(jì)數(shù)器值和過(guò)期時(shí)間
    $counter++;
    $expireTime = $currentTime + $limitTime;
 
    // 保存更新后的計(jì)數(shù)器值和過(guò)期時(shí)間到Session
    $_SESSION[$counterKey] = array(
        'value' => $counter,
        'expireTime' => $expireTime
    );
}
 
// 使用示例
$allowedIPs = array('192.168.0.1', '10.0.0.1'); // 允許訪問(wèn)的IP地址列表
$limitTime = 60; // 限制時(shí)間（秒）
$limitCount = 10; // 限制計(jì)數(shù)
restrictIPAccessWithRateLimit($allowedIPs, $limitTime, $limitCount);
 
// 允許訪問(wèn)的代碼...