How can server-side redirects impact the ability to extract subdomains in PHP?

Server-side redirects can impact the ability to extract subdomains in PHP because the redirect may change the original URL structure, making it difficult to accurately extract subdomains. To solve this issue, you can use the $_SERVER['HTTP_HOST'] variable to get the original host name before any redirects. 

// Get the original host name before any redirects
$original_host = $_SERVER['HTTP_HOST'];

// Extract subdomains from the original host name
$subdomains = explode('.', $original_host);

// Display the extracted subdomains
print_r($subdomains);

Keywords

server-side redirects subdomains PHP extraction impact

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