wp_is_mobile function

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Let me know whether wp_is_mobile function will work with all the mobile and tablet devices ? Is it enough to check mobile device ?

I found that this method in wp-includes/vars.php

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    function wp_is_mobile() {
    static $is_mobile;

    if ( isset($is_mobile) )
        return $is_mobile;

    if ( empty($_SERVER['HTTP_USER_AGENT']) ) {
        $is_mobile = false;
    } elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Mobile') !== false // many mobile devices (all iPhone, iPad, etc.)
        || strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false
        || strpos($_SERVER['HTTP_USER_AGENT'], 'Silk/') !== false
        || strpos($_SERVER['HTTP_USER_AGENT'], 'Kindle') !== false
        || strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false
        || strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== false ) {
            $is_mobile = true;
    } else {
        $is_mobile = false;
    }

    return $is_mobile;
}

If i need to develop any mobile site, whether i can use this method ?

Edit

Why wp uses server side script to detect mobile device ?

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1 comment

  1. No, it will fail. There are literally thousands of mobile clients, and not all send a usable User-Agent header. There are better ways to adjust the site to small screens (which is not necessary the same as mobile!).

    Use client side detection and offer a link to switch the view; save that option in a cookie.

    I think the common misconception is that mobile == small screen. The Nexus 10 has more pixels than my big desktop screen, while my old laptop running a desktop Ubuntu shows just a 1024×768 pixels. Surface RT comes with 1366×768 pixels, a mouse (trackpad), a keyboard and a touch interface. And some UAs are just not detectable.

    Which one will get the layout “optimized for mobile”?