Easy- Json and PHP decode - php

Question

I'm working with an API from underground weather. I'm trying to put some values into my website on localhost. I include a lot of values without problem. Like:
Temperature: 30°F
Wind: Fast
Here is the json of those values:
"current_observation": {
"image": {
"url":"http://icons-ak.wxug.com/graphics/wu2/logo_130x80.png",
"title":"Weather Underground",
"link":"http://www.wunderground.com"
},
"display_location": {
"full":"Buenos Aires, Argentina",
"city":"Buenos Aires",
"state":"",
"state_name":"Argentina",
"country":"AG",
"country_iso3166":"AR",
"zip":"00000",
"magic":"1",
"wmo":"87582",
"latitude":"-34.56999969",
"longitude":"-58.41999817",
"elevation":"6.00000000"
},
"observation_location": {
"full":"Palermo, Buenos Aires, Ciudad Autónoma de Buenos Aires",
"city":"Palermo, Buenos Aires",
"state":"Ciudad Autónoma de Buenos Aires",
"country":"Argentina",
"country_iso3166":"AR",
"latitude":"-34.595318",
"longitude":"-58.419781",
"elevation":"124 ft"
},
"estimated": {
},
"station_id":"IBUENOSA157",
"observation_time":"Last Updated on April 26, 7:52 PM ART",
"observation_time_rfc822":"Sat, 26 Apr 2014 19:52:51 -0300",
"observation_epoch":"1398552771",
"local_time_rfc822":"Sat, 26 Apr 2014 19:52:52 -0300",
"local_epoch":"1398552772",
"local_tz_short":"ART",
"local_tz_long":"America/Buenos_Aires",
"local_tz_offset":"-0300",
"weather":"Clear",
"temperature_string":"65.8 F (18.8 C)",
"temp_f":65.8,
"temp_c":18.8,
"relative_humidity":"63%",
and in the index php file:
<?php
$json_string = file_get_contents("http://api.wunderground.com/api/f84c5a4cd54b3216/geolookup/alerts/astronomy/almanac/conditions/forecast/hourly/q/autoip.json");
$parsed_json = json_decode($json_string);
$temp_c = $parsed_json->{'current_observation'}->{'temp_c'};
echo "{$'temp_c'};
That displays the temperature. The temperature in the json code is in: Current_observation and then the value temp_c.
The problem is that I want to echo the forecast, and the forecast is in a different location than the temp_c.
For example. I want to echo the current conditions, that is here:
The problem is, that is in:
{'forecast'}->{'simpleforecast'}->{'forecastday'} and then there is a zero for the current day, a 1 for the next day, a 2 for the following day, and a 3 for the next to the next day.
When I try to do that in php:
{'forecast'}->{'simpleforecast'}->{'forecastday'}->{'0'}->{'conditions'};
It does not show anything. How I can go into a value json when in the array there is a 0?
PD: for 0, there is one condition, for 1 (that is next day) there is other condition, and like that the others day. Thanks

Answer 1

For me it just works fine, I just tested your code, I just modified it a little bit:
<?php
$json_string = file_get_contents("http://api.wunderground.com/api/f84c5a4cd54b3216/geolookup/alerts/astronomy/almanac/conditions/forecast/hourly/q/autoip.json");
$parsed_json = json_decode($json_string, true);
$desired_forecast = $parsed_json['forecast']['simpleforecast']['forecastday'][0]['conditions'];
echo '<pre>';
print_r($desired_forecast); // Thunderstorm
echo '</pre>';
It is accessible.

Answer 2

You were really close but {'0'} means there is an object with the key 0, while you really wanted to access the first index of forecastday
var_dump($parsed_json->{'forecast'}->{'simpleforecast'}->{'forecastday'}[0]->conditions);