<?php
class RequestTypeDetector {
public function detectRequestType() {
$userAgent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
$isAjax = isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest';
// 检查是否是AJAX请求
if ($isAjax) {
return 'AJAX Request';
}
// 检查是否是搜索引擎爬虫请求
if ($this->isSearchEngineBot($userAgent)) {
return 'Search Engine Bot';
}
// 检查是否是正常的浏览器请求
if ($this->isBrowserRequest($userAgent)) {
return 'Browser Request';
}
// 其他请求
return 'Other Request';
}
private function isSearchEngineBot($userAgent) {
// 常见搜索引擎User-Agent关键字
$bots = [
'googlebot', 'bingbot', 'slurp', 'duckduckbot', 'baiduspider', 'yandexbot', 'sogou', 'exabot', 'facebot', 'ia_archiver'
];
foreach ($bots as $bot) {
if (stripos($userAgent, $bot) !== false) {
return true;
}
}
return false;
}
private function isBrowserRequest($userAgent) {
// 常见浏览器User-Agent关键字
$browsers = [
'mozilla', 'chrome', 'safari', 'firefox', 'opera', 'edge', 'trident'
];
foreach ($browsers as $browser) {
if (stripos($userAgent, $browser) !== false) {
return true;
}
}
return false;
}
}
// 示例使用
$detector = new RequestTypeDetector();
$requestType = $detector->detectRequestType();
echo "请求类型: " . $requestType; 网友回复


