使用PHP解析JSON（带有标签和数组的数组）

Question

I have been trying to parse a JSON response since few days without success. I've read on the internet and this site how to parse with a foreach but I think the structure of json is too different from the examples I've found. So here is the JSON:

 array(1) 

        { ["matches"]=> array(10) 
            { [0]=> array(13) { ["matchId"]=> int(2125878813) 
                                ["region"]=> string(3) "EUW" 
                                ["platformId"]=> string(4) "EUW1" 
                                ["matchMode"]=> string(7) "CLASSIC" 
                                ["matchType"]=> string(12) "MATCHED_GAME" 
                                ["matchCreation"]=> float(1432656547642) 
                                ["matchDuration"]=> int(1852) 
                                ["queueType"]=> string(15) "RANKED_SOLO_5x5" 
                                ["mapId"]=> int(11) 
                                ["season"]=> string(10) "SEASON2015" 
                                ["matchVersion"]=> string(9) "5.9.0.318" 
                                ["participants"]=> array(1) 
                                    { [0]=> array(10) { 
                                    ["teamId"]=> int(200) 
                                    ["spell1Id"]=> int(7) 
                                    ["spell2Id"]=> int(4) 
                                    ["championId"]=> int(67) 
                                    ["highestAchievedSeasonTier"]=> string(8) "PLATINUM" 
                                    ["timeline"]=> array(9) 
                                        { ["creepsPerMinDeltas"]=> array(3) 
                                            { ["zeroToTen"]=> float(6.2) 
                                              ["tenToTwenty"]=> float(7.4) 
                                              ["twentyToThirty"]=> float(4.4) } 
                                              ["xpPerMinDeltas"]=> array(3) 
                                                { ["zeroToTen"]=> float(336.2) 
                                                  ["tenToTwenty"]=> float(428.3) 
                                                  ["twentyToThirty"]=> float(396) } 
                                                    ["goldPerMinDeltas"]=> array(3) { 
                                                    ["zeroToTen"]=> float(270.7) 
                                                    ["tenToTwenty"]=> float(363.6) 
                                                    ["twentyToThirty"]=> float(294.8) }

If I understand well this is an array with tabs inside and arrays also ?

I would like for example to display the 10 matches id : matches->matchId matches->participants->championId matches->participants->timeline->creepsPerMinDeltas->zeroToTen

Here is what I've done so far to display the matchId :

 $decodeHisto = json_decode ($resultHisto,true);

    //var_dump($decodeHisto);       
    foreach ($decodeHisto{[matches]} as $d)      
    {

    echo $d->{[matchId]}-;

    }

Can anyone help me please ?

Answer 1

Your code is not JSON, as JSON is exactly defined like this:

{
"Herausgeber": "Xema",
  "Nummer": "1234-5678-9012-3456",
  "Deckung": 2e+6,
  "Waehrung": "EURO",
  "Inhaber": {
    "Name": "Mustermann",
    "Vorname": "Max",
    "maennlich": true,
    "Hobbys": [ "Reiten", "Golfen", "Lesen" ],
    "Alter": 42,
    "Kinder": [],
    "Partner": null
  }
}

You can convert a JSON array to PHP with this code:

$array = json_decode($json);

But as I said before, your code is not JSON. It seems to be even a PHP array. Then you can access with:

$arr["matches"][0]["matchId"]

for example.

Answer 2

Given the additional information you provided by posting an own "answer" to your question here I would like to point out this:

So if what you posted in your question is a dump of the result you got back from a call to json_decode() , then what you have simply is an array. An associative, multi level array, but still just a normal php array. This is also what the documentation of the json_decode() function clearly states: http://php.net/manual/en/function.json-decode.php

There is absolutely no reason to somehow "parse" an array. The "tabs" or whitespaces you can see in the dump are not part of the result you have, so of the array. Those are artefacts by the dumoing function you use to visualize the array. You can simply access all members (or members of members...) of the array sirectly by their associative "path", as you will see in all examples of php code you can find on google. Here an example:

$value = $decodedJson['matches'][0]['matchDuration'];

Given $decodedJson is the result array as posted in your question, then $value will now hold the integer value 1852.

You can access whatever part or element of the array you like. you can iterate over parts of the array using php's iteration constructs like foreach and the like. You can search in the array by means of php's array functions( http://php.net/manual/en/ref.array.php ).