Making A Loop Increment Into An Array?

I do mostly PHP/mySQL development.

I put some HTML together to gather a user's language abilities. Originally it was a multi-select box that pulled a its values from a mySQL table and, upon form submit, a PHP script posted the languages selected into an array and then pushed into a mySQL table.

Then the client decided he wanted the user to enter in the number of years/months they studied each language selected. He found someone on RAC and they gave him this code below. Which works, but doesn't integrate well with my PHP-array loading code. The client paid the RAC before I was able to test.

It's actually more complicated than that (with Fluent/Passable options), but once I know how to change the loop from the increment to an array, I'll be able to solve the rest.

What's happening now is the JS is looping, creating ids, fluentLanguageTimeQuantity_0, fluentLanguageTimeQuantity_1, fluentLanguageTimeQuantity_2, etc for each selection. Instead I'd like it to create an array fluentLanguageTimeQuantity[] with the selections loaded into it.

Code:
for(var i=0; i<options.length;i++){
fluentStr +='<div class="languageOption"><label>'+options[i].value+'</label> <input type="text" size="3" maxlength="3" id="'+

[Code]....