Php – Different Local Values and Master Values for PHP Session settings

I have configured PHP 5.4.16 (cli) (built: Jun 23 2015 21:17:27) on Centos7.0 to use memcached for session handling.

[Session]
; Handler used to store/retrieve data.
; http://php.net/session.save-handler
session.save_handler = memcached

session.save_path = "tcp://127.0.0.1:11211"

According to phpinfo(), the Local Values for session.save_handler & session.save_path are different to the Master values.

The Master Values are as indicated in the php.ini file.

I can’t see these Local Values being set in .htaccess, under /etc/httpd or in the PHP code base.

Is there somewhere else that they are likely to come from or are these fallback values that might indicate a problem with my memcached configuration. If so, how does one fix this?

I can verify that memcached is working by using an example like this one from Digital Ocean and seeing the data in a telnet session.

<?php

$mem = new Memcached();
$mem->addServer("127.0.0.1", 11211);

$result = $mem->get("blah");

if ($result) {
    echo $result;
} else {
    echo "No matching key found.  I'll add that now!";
    $mem->set("blah", "I am data!  I am held in memcached!") or die("Couldn't save anything to memcached...");
}
?>

I have also tried adding these lines to a .htaccess file.

php_flag session.save_handler "memcached"
php_flag session.save_path "127.0.0.1:11211"

But the values appeared zeroed out.