What are some methods to detect the system language of a client using PHP?

To detect the system language of a client using PHP, you can use the $_SERVER['HTTP_ACCEPT_LANGUAGE'] variable which contains the language preferences set by the client's browser. This variable returns a comma-separated list of language codes in the order of preference. 

// Get the client's language preferences
$clientLanguages = $_SERVER['HTTP_ACCEPT_LANGUAGE'];

// Split the list of languages into an array
$languages = explode(',', $clientLanguages);

// Get the most preferred language
$preferredLanguage = $languages[0];

echo "Client's preferred language: " . $preferredLanguage;

Keywords

HTTP_ACCEPT_LANGUAGE $_SERVER explode substr strpos

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