Question

I am very new to JSON and i really need help. So I have been given this $oldAuctions object and after using PHP’s json_decode function (json_decode($oldAuctions, TRUE);) it returned me something like this that has 11 objects with 9 set of name/value pairs in each…

{
    "recent_results": [
        {
            "closing_yield": "0.800",
            "auction_id": "106",
            "use_buy_it": "0",
            "issuer": "National Bank",
            "term": "1 Year",
            "is_charity": "1",
            "end_date": "12-26-2012",
            "closing_price": "100.000000",
            "issue_type": "FDICs"
        },
        {
            "closing_yield": "1.090",
            "auction_id": "339",
            "use_buy_it": "0",
            "issuer": "National Bank",
            "term": "1 Year",
            "is_charity": "1",
            "end_date": "12-12-2012",
            "closing_price": "100.000000",
            "issue_type": "FDICs"
        },
        {
            "closing_yield": "2.000",
            "auction_id": "041",
            "use_buy_it": "0",
            "issuer": "National Bank",
            "term": "5 Year",
            "is_charity": "1",
            "end_date": "09-11-2012",
            "closing_price": "100.000000",
            "issue_type": "FDICs"
        }
    ]
}

Now I need to grab each pair and save their values in an array. For example, I want to grab the auction_id and save it’s values in an array…..how can I do that?

Also, just for simple testing purpose I tried to print out the values first…but that didn’t work either…

foreach($oldAuctions as $IDs)       
{
   echo 'Ids: '.$IDs->auction_id;
}

I would really appreciate your help. Thank you!

Answer 1

After invoking json_encode your array $oldAuctions has become a JSON string. You can not iterate through it as array or object as its a string.

As $oldAuctions is already an array you can simply use forach

foreach($oldAuctions['recent_results'] as $result){
    echo 'Ids: '.$result['auction_id']. "\n";
}