How to ban pc access in php

php method to prohibit pc access: 1. Create a php sample file; 2. Verify whether it is mobile access through "public static function check_wap(){...}"; 3. Determine the client sent by the mobile phone Terminal flag; 4. Find the keyword of the mobile browser from "HTTP_USER_AGENT".

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

How to prohibit PC access in php?

PHP can be accessed by mobile phone but cannot be accessed by PC

The code is moved online and has been tested (IOS mobile phone). If you have an Android mobile phone, you can test it again by yourself. Due to environmental restrictions, there is no way. If you want to send a screenshot on your phone, just use your computer to take a screenshot! PHP backend verification method, when it is false, it is not mobile phone access, when it returns true, it is mobile phone access;

public static function check_wap()
{
// 如果有HTTP_X_WAP_PROFILE则一定是移动设备
if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
return true;
}
//如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
if (isset($_SERVER['HTTP_VIA'])) {
//找不到为flase,否则为true
if (stristr($_SERVER['HTTP_VIA'], "wap")) {
return true;
}
}
//协议法，因为有可能不准确，放到最后判断
if (isset($_SERVER['HTTP_ACCEPT'])) {
// 如果只支持wml并且不支持html那一定是移动设备
// 如果支持wml和html但是wml在html之前则是移动设备
if ((strpos($_SERVER[&#39;HTTP_ACCEPT&#39;], &#39;vnd.wap.wml&#39;) !== false) && (strpos($_SERVER[&#39;HTTP_ACCEPT&#39;], &#39;text/html&#39;) === false || (strpos($_SERVER[&#39;HTTP_ACCEPT&#39;], &#39;vnd.wap.wml&#39;) < strpos($_SERVER[&#39;HTTP_ACCEPT&#39;], &#39;text/html&#39;)))) {
return true;
}
}
return false;
}

The following code is to determine the browser F12 debugging scenario, if you need to access it from the PC side To access the browser, just add this piece of code above the third judgment (agreement method). Since the code is too long, shrink it and take a screenshot:

//判断手机发送的客户端标志,兼容性有待提高
if (isset($_SERVER['HTTP_USER_AGENT'])) {
$clientkeywords = array (
'nokia',
'sony',
'ericsson',
'mot',
'samsung',
'htc',
'sgh',
'lg',
'sharp',
'sie-',
'philips',
'panasonic',
'alcatel',
'lenovo',
'iphone',
'ipod',
'blackberry',
'meizu',
'android',
'netfront',
'symbian',
'ucweb',
'windowsce',
'palm',
'operamini',
'operamobi',
'openwave',
'nexusone',
'cldc',
'midp',
'wap',
'mobile',
'phone',
);
// 从HTTP_USER_AGENT中查找手机浏览器的关键字
if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
return true;
}
}

Recommended study: "PHP video tutorial》

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