Follow along with the video below to see how to install our site as a web app on your home screen.
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if (isset($_SERVER['HTTP_USER_AGENT']) && (strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false))
{
//Код за opera
}
elseif(isset($_SERVER['HTTP_USER_AGENT']) && (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false))
{
//Код за firefox
}