是否https
function?is_https(){
if?(?!?empty($_SERVER['HTTPS'])?&&?strtolower($_SERVER['HTTPS'])?!==?'off')
{
return?TRUE;
}
elseif?(isset($_SERVER['HTTP_X_FORWARDED_PROTO'])?&&?$_SERVER['HTTP_X_FORWARDED_PROTO']?===?'https')
{
return?TRUE;
}
elseif?(?!?empty($_SERVER['HTTP_FRONT_END_HTTPS'])?&&?strtolower($_SERVER['HTTP_FRONT_END_HTTPS'])?!==?'off')
{
return?TRUE;
}
return?FALSE;
}