javascript-php reading a JSON file and finding its contents

Do you have this? A JSON format file X.json

Now PHP wants to read the contents of the JSON file and find the item in the bundle as required
Example: Output Dkey value via A03
How do I find the corresponding output? For advice

Error

Reply content:

Do you have this? A JSON format file X.json

Now PHP wants to read the contents of the JSON file and find the item in the bundle as required
Example: Output Dkey value via A03
How do I find the corresponding output? For advice

Error

Your JSON file has a BOM header,

$json = file_get_contents (' Qcode.json '); $arr = Json_decode (Trim ($json, Chr (239). chr (187). Chr (191)), true); $temp = Arra Y_column ($arr, ' Dkey ', ' dvalue '); Echo $temp [' A05 '];if (! function_exists (' Array_column ')) {function Array_column (ARRA        Y $input, $columnKey, $indexKey = null) {$array = array (); foreach ($input as $value) {if (! isset ($value [$columnKey])) {trigger_error ("Key \" $columnKey \                "does not exist in array");            return false;            } if (Is_null ($indexKey)) {$array [] = $value [$columnKey]; } else {if (! isset ($value [$indexKey])) {trigger_error ("Key \" $indexKey \ "does not exi                    St in Array ");                return false; } if (! is_scalar ($value [$indexKey])) {trigger_error ("Key \" $indexKey \ "does not contai                    N scalar value ");                return false; } $array[$value [$indexKey]] = $value [$columnKey];    }} return $array; }}

Var_dump (Json_decode ($json));

Print out all the values first, and you'll know how to call them.

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