Dfyjkt

 global $wpdb;
 $query = "
 SELECT DISTINCT SUM(pm.meta_value)
 FROM $wpdb->prefixposts as p
 INNER JOIN $wpdb->prefixpostmeta as pm ON p.ID = pm.post_id
 WHERE p.post_type LIKE 'shop_order'
 AND pm.meta_key LIKE '_customer_user_agent'
 ";

 $dev_results = $wpdb->get_var($device_query);
 $device_type = $dev_results;

 global $wpdb;
 $query = "
 SELECT DISTINCT SUM(pm.meta_value)
 FROM $wpdb->prefixposts as p
 INNER JOIN $wpdb->prefixpostmeta as pm ON p.ID = pm.post_id
 WHERE p.post_type LIKE 'shop_order'
 AND pm.meta_key LIKE '_customer_user_agent'
 ";

 $dev_results = $wpdb->get_var($device_query);
 $device_type = $dev_results;

 global $wpdb;
 $query = "
 SELECT DISTINCT SUM(pm.meta_value)
 FROM $wpdb->prefixposts as p
 INNER JOIN $wpdb->prefixpostmeta as pm ON p.ID = pm.post_id
 WHERE p.post_type LIKE 'shop_order'
 AND pm.meta_key LIKE '_customer_user_agent'
 ";

 $dev_results = $wpdb->get_var($device_query);
 $device_type = $dev_results;

 global $wpdb;
 $query = "
 SELECT DISTINCT SUM(pm.meta_value)
 FROM $wpdb->prefixposts as p
 INNER JOIN $wpdb->prefixpostmeta as pm ON p.ID = pm.post_id
 WHERE p.post_type LIKE 'shop_order'
 AND pm.meta_key LIKE '_customer_user_agent'
 ";

 $dev_results = $wpdb->get_var($device_query);
 $device_type = $dev_results;

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);