php判斷wap客戶端(手機用戶)

<?php
function is_mobile() {

    $devices = array(
        "operaMobi" => "Opera Mobi",
        "android" => "android",
        "blackberry" => "blackberry",
        "iphone" => "(iphone|ipod)",
        "opera" => "opera mini",
        "palm" => "(avantgo|blazer|elaine|hiptop|palm|plucker|xiino)",
        "windows" => "windows ce; (iemobile|ppc|smartphone)",
        "generic" => "(kindle|mobile|mmp|midp|o2|pda|pocket|psp|symbian|smartphone|treo|up.browser|up.link|vodafone|wap)"
    );
    
    if (isset($_SERVER['HTTP_X_WAP_PROFILE']) || isset($_SERVER['HTTP_PROFILE'])) {
        return TRUE;
    } elseif (isset($_SERVER['HTTP_ACCEPT']) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/vnd.wap.wml') > 0 || strpos($_SERVER['HTTP_ACCEPT'], 'application/vnd.wap.xhtml+xml') > 0)) {
        return TRUE;
    } else {
        
        if (isset($_SERVER['HTTP_USER_AGENT'])) {
            foreach ($devices as $device => $regexp) {
                
                if (preg_match("/" . $regexp . "/i", $_SERVER['HTTP_USER_AGENT'])) {
                    return TRUE;
                }
            }
        }
    }
    return FALSE;
}
?>

函數來源於xweibo2.0開源系統