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标头Accept-CH不显示，无法用于php判断win11

 2 years ago
source link: https://www.oschina.net/question/5597372_2324956
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标头Accept-CH不显示，无法用于php判断win11

osc_46761569 发布于 昨天 17:32

为了判断win10和win11系统，我根据教程在head中间加入了

<meta http-equiv="Accept-CH" content="Sec-CH-UA-Platform-Version">

希望能够让页面获取系统型号。然而php文件都不显示这个header，结果中没有型号，也找不到Accept-CH
反而是图片、js、css文件的header全都带有这个结果。。Win10会显示10.0.0，Win11会显示14.0.0

现在需要将这个结果用在PHP里面判断

	if(is_browser_request()){	

		$user_agent = $_SERVER['HTTP_USER_AGENT'];
		$systemid = ___________________;
		
		if (stripos($user_agent, "iPhone")!==false) {
			$brand = 'iPhone';
		} else if (stripos($systemid, "10.0.0")!==false) {
			$brand = 'Win10';
		} else if (stripos($systemid, "14.0.0")!==false) {
			$brand = 'Win11';
		} else if (stripos($user_agent, "Windows NT 6.1")!==false) {
			$brand = 'Win7';
		} else {
			$brand = '其他系统';
		}

请问如何让php文件显示这个header呢？以及如何定义，是否应该是

$systemid = $_SERVER['HTTP_SEC_CH_UA_PLATFORM_VERSION'];


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