access sub-elements of an array in php foreach loop

Question

I have a cURL command from an API which outputs JSON for me:

curl_setopt($ch, CURLOPT_URL, "https://url.com/Search/search/xref?user=[{%22USER%22:%22userName%22}]");

I then use PHP's jsondecode on the output:

$json = json_decode($answerSearch, true);

and my console's response tab gives me this for print_r($json);:

Array (
 [Result] => Array
        (
            [Data] => Array
                (
                    [ReqCompany] => ACME
                    [ReqLocation] => 
                    [Dot] => Array
                        (
                            [0] => Array
                                (
                                    [ComID] => 20388417
                                    [FavoriteColor] => Blue

                                )

                            [1] => Array
                                (
                                    [ComID] => 20388418
                                    [FavoriteColor] => Pink
                                )

                            [2] => Array
                                (
                                    [ComID] => 20388419
                                    [FavoriteColor] => Red
                                )

                        )

                    [XREFSearchOperation] => Exact
                )

        )

)

How do I write a foreach loop to go through each element of this array and output each `[FavoriteColor]'? I've done this many times with a simple array, but never a multi-dimensional one.

I've tried this:

foreach ($json as $i) {
  echo $i['FavoriteColor']; 
}

but my syntax is wrong.

AbraCadaver · Accepted Answer · 2015-02-16 21:58:04Z

1

$json is an array of only one item Result, another array, which in turn only has one item, another array Data etc. Data has multiple items, one of them being Dot which holds the array you want. You need to foreach over the array farther into the array:

foreach ($json['Result']['Data']['Dot'] as $i) {
  echo $i['FavoriteColor']; 
}

answered Feb 16, 2015 at 21:58

AbraCadaver

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1 Comment

Brian Powell Over a year ago

Beautiful - I wasn't sure how to keep drilling down into these array elements. Thank you! This works perfectly.

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