Foreach array loop for JSON - php

Question

Here is my PHP/JSON code:
$json_url = "http://dailydota2.com/match-api";
$json = file_get_contents($json_url);
$json=str_replace('},
]',"}
]",$json);
$decoded= json_decode($json);
$data=$decoded->matches[0];
foreach ($data as $value) {
print_r($value->team1->logo_url);
}
Now I have the following problem
Notice: Trying to get property of non-object
and
Notice: Undefined property: stdClass::$team1
I just want use foreach loop and then show my results in HTML.
Why I am getting the 2 mentioned problems and how can I show the correct results?

Answer 1

Ok so the url your are using return VALID JSON, no need to change any of it!
I suggest using arrays, it has always appeared simpler to me
Do you want the logo_url from team or image_url from league? I will show both in my implementation.
So here is some corrected code
$json_url = "http://dailydota2.com/match-api";
$json = file_get_contents($json_url);
$decoded= json_decode($json,true); // True turns it into an array
$data = $decoded['matches'];
foreach ($data as $value) {
//I am not sure which one you want!!!
echo $value['league']['image_url'] . "<br>";
echo $value['team1']['logo_url'] . "<br>";
echo $value['team2']['logo_url'] . "<br>";
}
*EDIT To show wanted implementation by questions author...
$json_url = "http://dailydota2.com/match-api";
$json = file_get_contents($json_url);
$decoded= json_decode($json,true); // True turns it into an array
$data = $decoded['matches'];
foreach ($data as $value) {
echo "
<img src=\"http://dailydota2.com/{$value['team1']['logo_url']}\">
<img src=\"http://dailydota2.com/{$value['team2']['logo_url']}\">
";
}

Answer 2

I have checked your code and have some notes and hopefully a solution:
1- You are trying to get non existing key from JSON data, that is the message telling you.
2- I am still not sure what do you get from the JSON API. But regarding to dailydota2 documentation there is nothing called image_url under team1. I guess you are looking for logo_url or something like that.
3- Do not change the format of JSON as you do in your code, therefore delete following line:
$json=str_replace('}, ]',"} ]",$json);
Just leave the main JSON output from API as default.
4- When you try to get specific key from the decoded JSON/Array just use following way:
$data = $decoded->{'matches'};
in stead of
$data=$decoded->matches[0];
Reference: http://php.net/manual/en/function.json-decode.php
5- And finally your foreach loop is working but needs the correct key:
foreach ($data as $value) {
print_r($value->team1->logo_url);
}
When all these step is done, it should works.
Here is your final corrected code:
$json_url = "http://dailydota2.com/match-api";
$json = file_get_contents($json_url);
$decoded = json_decode($json);
$data = $decoded->{'matches'};
foreach ($data as $value) {
print_r($value->team1->logo_url);
echo '<img src="http://dailydota2.com/' . $value->team1->logo_url . '">';
}
It returns following output, and I do not get any errors.
/images/logos/teams/cdecgaming.png/images/logos/teams/teamempire.png
/images/logos/teams/ehome.png/images/logos/teams/ehome.png
/images/logos/teams/fnatic.png/images/logos/teams/cloud9.png
/images/logos/teams/teamissecret.png/images/logos/teams/teamissecret.png
/images/logos/teams/natusvincere.png/images/logos/teams/fnatic.png
Again I really do not know which information you want to get from the API but here you have a base of working code that you can work further with to get the required data from the right KEYs.