Array instead of object from json_encode with recursive method

Question

I have the following method that I use to recursively build my php arrays then turn them into a json string:

protected function stringKeyToMultArray(&$newarr, $keys, $value) {
    if(count($keys) > 1) {
        $key = array_shift($keys);

        if(!isset($newarr[$key]) || !is_array($newarr[$key])) {
            $newarr[$key] = array();
        }

        $this->stringKeyToMultArray($newarr[$key], $keys, $value);
    } else {
        $newarr[array_shift($keys)] = $value;
    }
}

EDIT: This is how it is called:

$path_arr = [];
foreach ($product_row['fields'] as $field) {
    //gets the path for this field like pathto/field
    $strpath = $tags[$field['id']]['str_path'];
    $paths = explode('/', $strpath);
    $this->stringKeyToMultArray($path_arr, $paths, $field['value']);
}

Then after this is simply json_encode it like json_encode($path_arr) END EDIT The issue is the formatting if it gets to a second level should use an array to wrap the parts. So what I am getting now is:

{  
    "product_title":"Test Title",
    "ASIN":"1234567890",
    "codes":{  
        "type":"UPC",
        "number":"030878249270"
    },
    "quantity":"1"
}

What I need is the following:

{  
    "product_title":"Test Title",
    "ASIN":"1234567890",
    "codes":[
        {  
        "type":"UPC",
        "number":"030878249270"
        }
    ],
    "quantity":"1"
}

Any ideas on how I could do this with the recursive method?

json_encode will give you an object.. if you want an array/associative array, use json_decode. That being said, I don't even see json_encode being used here. — Lansana Camara
– Lansana Camara, Commented Mar 11, 2016 at 0:21
"if it gets to a second level should use an object to wrap the parts" - but what you're showing after "What I need is the following:" is an object wrapped in an array. — VolkerK
– VolkerK, Commented Mar 11, 2016 at 0:38
$strpath = $tags[$field.... is that really $strpath or $jetpath? And if it's not $jetpath, then where does $jetpath come from? — VolkerK
– VolkerK, Commented Mar 11, 2016 at 1:11

VolkerK · Accepted Answer · 2016-03-11 02:12:20Z

2

Given the (very) specific conditions stated in the question and the comments:

protected function stringKeyToMultArray(&$newarr, $keys, $value) {
    if (count($keys) > 1) {
        $key = array_shift($keys);
        if ( !isset($newarr[$key]) || !is_array($newarr[$key])) {
            $newarr[$key] = array(array());
        }
        $this->stringKeyToMultArray($newarr[$key][0], $keys, $value);

    } else {
        $newarr[array_shift($keys)] = $value;
    }
}

see https://3v4l.org/4Hpek

answered Mar 11, 2016 at 2:12

VolkerK

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1 Comment

sudopratt Over a year ago

Given the awesomeness of the answer... this works perfectly.

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