How do I get an associative array from a query string in Bash? - Attempt:

```
#!/usr/bin/env bash

# Querystring (implementation stolen from http://stackoverflow.com/q/3919755)

function populate_querystring_array ()
{
    param="$1"
    query_dict="$2"
    #for i in "${array[@]}"; do IFS="=" ; set -- $i; query_dict[$1]=$2; done

    for ((i=0; i<${#param[@]}; i+=2))
    do
        query_dict[${param[i]}]=${param[i+1]}
    done
}

q0='email=foo@bar.com&password=dfsa54'
declare -A querydict
populate_querystring_array "$q0" "$querydict"
printf "$querydict[email]"

```