About
A query string is the fourth part of a URI.
Syntax
An URI has the following syntax with the ?query being the query string
[scheme:][//authority][path][?query][#fragment]
and within it, the query string follows this syntax
?parameter1=value1¶meter2=value2&...¶meterN=valueN
The value of the parameter must be encoded.
Note that:
- repeated keys are valid and each one may have a different value.
Parameter
A query parameter is the key of a value. See net above.