방법 #1
<?php
$protocol = stripos($_SERVER['SERVER_PROTOCOL'], 'https') === true ? 'https://' : 'http://';
?>
방법 #2
<?php
function getSiteProtocol() {
if(isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1)
|| isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')
return $protocol = 'https://';
else
return $protocol = 'http://';
}
?>