var cur_ques_details ={"ques_id":15,"ques_title":"jlkjlkjlkjljl"};

$uv = $weatherDateData['SiteRep']['DV']['Location']['Period'][$period]['Rep']['0']['U'];
        $temperature = $weatherDateData['SiteRep']['DV']['Location']['Period'][$period]['Rep']['0']['T'];

var uv = msg['SiteRep']['DV']['Location']['Period'][$period]['Rep']['0']['U'];



{ "name": "U", "units": "", "$": "Max UV Index" }

[{"id":"97ec773.997da88","type":"function","z":"773cf8cf.1fabf8","name":"New improved JSON","func":"var MetOffice = msg.payload;\nvar UV;\nUV = MetOffice.SiteRep.DV[0].Location[0].Period[0].Rep.U;\nmsg = UV;\n\nreturn msg;","outputs":"1","noerr":0,"x":460,"y":140,"wires":[["32a68731.add4a8","95979148.8b55a"]]}]