Can PHP be used to differentiate between regular users and web crawlers like Google?

To differentiate between regular users and web crawlers like Google, you can check the user agent string provided in the HTTP request. Web crawlers usually have specific user agent strings that can be identified. You can use PHP to access this information and determine if the request is coming from a regular user or a web crawler. 

$userAgent = $_SERVER['HTTP_USER_AGENT'];

if (strpos($userAgent, 'Googlebot') !== false) {
    // Request is coming from Googlebot
    echo 'Hello Googlebot!';
} else {
    // Request is coming from a regular user
    echo 'Hello regular user!';
}

Keywords

PHP User-Agent Web Crawlers Googlebot Regular Users

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