how to pass a + sign to php

I'm having a terible time doing this

var somevalue = "variable+variable";
var somevalue = 'val+val';
var somevalue = 'val\+val';

Code (markup):

none of these work

php reads that as "variable variable" I need the + sign in there some how. If I escape the + sign with \, the browser complains that some other variable isn't declared. Javascript shows the +, but php is being a pain.

php is reading that with

$_GET['somevar'];

Code (markup):

please help, Thanks.

 

nevermind, in php i just needed to use urldecode on the javascript that had

var val='val1%2Bval2';

Code (markup):

 

My other fix is to read the javascript string and convert the + to %2b, and pass that to php.