How can the HTTP_ACCEPT_LANGUAGE header be used to identify the language of the client in PHP?

To identify the language of the client using the HTTP_ACCEPT_LANGUAGE header in PHP, you can parse the header value and extract the language code. This code snippet demonstrates how to accomplish this by using the $_SERVER superglobal to access the header value and then using the explode function to separate the language codes if multiple languages are provided. 

$acceptLanguage = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
$languages = explode(',', $acceptLanguage);
$preferredLanguage = $languages[0];
echo "Preferred Language: " . $preferredLanguage;

Keywords

HTTP_ACCEPT_LANGUAGE header identify language client

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