PHP OpenWeather - php

Question

Alright so I am having some troubles understanding how to use the open weather API.
I have tried using it as
<?php
$request = file_get_contents('http://api.openweathermap.org/data/2.5/forecast/city?id=myidblablabla'); //example ID
$jsonPHP = json_decode($request);
echo $jsonPHP->city;
?>
But I get an error saying
Catchable fatal error: Object of class stdClass could not be converted
to string in
Now there is 1 more question that I have to ask, how do I get certains City Temperature, humidity etc? From the code I received I get only Moscow

Answer 1

To simplify it, you can also transform the json into array instead.
$jsonPHP = json_decode($request,true);
Now let's discuss it briefly. According to the documentation (http://openweathermap.org/current),
Note also that I've never used this API before. I'm just trying to help here.
If you hit api.openweathermap.org/data/2.5/weather?lat=35&lon=139
It responds as
{"coord":{"lon":139,"lat":35},
"sys":{"country":"JP","sunrise":1369769524,"sunset":1369821049},
"weather":[{"id":804,"main":"clouds","description":"overcast clouds","icon":"04n"}],
"main":{"temp":289.5,"humidity":89,"pressure":1013,"temp_min":287.04,"temp_max":292.04},
"wind":{"speed":7.31,"deg":187.002},
"rain":{"3h":0},
"clouds":{"all":92},
"dt":1369824698,
"id":1851632,
"name":"Shuzenji",
"cod":200}
Now assuming you want to take the weather and humidity , it just :
weather :
echo $jsonPHP["weather"][0]["id"];
humidity:
echo $jsonPHP["main"]["humidity"];
Note also that, If you hit http://api.openweathermap.org/data/2.5/weather?lat=35&lon=139 and get the responds as
{"cod":401, "message": "Invalid API key. Please see http://openweathermap.org/faq#error401 for more info."}
For the case, they've explained here :
http://openweathermap.org/faq#error401 which is :
Q: API calls return an error 401
A: Starting from 9 October 2015 our
API requires a valid APPID for access. Note that this does not mean
that our API is subscription-only now - please take a minute to
register a free account to receive a key.
We are sorry for inconvenience but this is a necessary measure that
will help us deliver our services to you faster and more reliably.
For FOSS developers: we welcome free and open source software and are
willing to help you. If you want to use OWM data in your free software
application please register an API key and file a ticket describing
your application and API key registered. OWM will review your request
lift access limits for your key if used in open source application.