Write in PHP a weather Web service that takes a ZIP code and the number of days as a query string (e.g., ?zip=79902&days=6) and provides daily forecasts of the specified place for the requested number of days. The output is encoded in JSON e.g., ["sunny", "mostly sunny", "mostly cloudy", "cloudy", "showers", "rain".] If the user supplies no parameters or provides invalid values, use reasonable default values, e.g., one for days.

Query string	Output
../weather/?zip=79902&days=5	["sunny","showers","showers","cloudy","showers"]
../weather/?days=2	["cloudy", "mostly sunny"]
../weather/	["cloudy"]

Your script may simulate a weather forecast by selecting a forecast randomly: sunny, mostly sunny, mostly cloudy, cloudy, showers, and rain.