How can subdomains be dynamically read using PHP?

To dynamically read subdomains using PHP, you can utilize the $_SERVER['HTTP_HOST'] variable to get the full domain name, then parse out the subdomain by splitting the domain name. This can be useful for creating dynamic content based on the subdomain. 

$host = $_SERVER['HTTP_HOST'];
$host_parts = explode('.', $host);
$subdomain = $host_parts[0];
echo "Subdomain: " . $subdomain;

Keywords

PHP subdomains dynamic parsing $_SERVER

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