CODEWITHSUNDEEP
phparraysjsonmerge
Matt
Matt

Reputation: 77

Multiple External JSON files to be merged

I have around 850 json files and I'd like to merge them in groups of 50. What would the best method be for this?

array_merge ?

I've seen some examples but none with more than 2 arrays.

<?

$array1 = json_decode(file_get_contents('1.json'));
$array2 = json_decode(file_get_contents('2.json'));
$array3 = json_decode(file_get_contents('3.json'));
$array4 = json_decode(file_get_contents('4.json'));
$array5 = json_decode(file_get_contents('5.json'));
$array6 = json_decode(file_get_contents('6.json'));
$array7 = json_decode(file_get_contents('7.json'));
$array8 = json_decode(file_get_contents('8.json'));
$array9 = json_decode(file_get_contents('9.json'));
$array10 = json_decode(file_get_contents('10.json'));
$array11 = json_decode(file_get_contents('11.json'));
$array12 = json_decode(file_get_contents('12.json'));
$array13 = json_decode(file_get_contents('13.json'));
$array14 = json_decode(file_get_contents('14.json'));
$array15 = json_decode(file_get_contents('15.json'));

$result = array_merge($array14, $array15);
var_dump(json_encode($result));

?>

Example of 1 of the JSON: http://pastebin.com/QDyGGjQj

Hopeful Outcome (3 out of 50 since 50 is huge example): http://pastebin.com/fP2MHN2Y

Upvotes: 0

Views: 362

Answers (2)

Sergey Vidusov
Sergey Vidusov

Reputation: 1342

I'm not sure why exactly you'd want to merge the arrays instead of making an array of arrays, but I guess something similar to what you're looking for can be achieved by this:

$path_to_your_files = '/path/to/your/json/files';
$result = array();
if ($handle = opendir($path_to_your_files)) {
    while (false !== ($filename = readdir($handle))) {
        if ($filename != "." && $filename != "..") {
            $result = $result + json_decode(file_get_contents($path_to_your_files .'/'. $filename));
        }
    }
}
var_dump(json_encode($result));

EDIT: added the file system reader.

Upvotes: 1

Mr. Engineer
Mr. Engineer

Reputation: 3515

Try this : 

$dir = = "/files/"; //replace it with yours.
$f = scandir($dir);
foreach($f as $file) {
    $arr[] = json_decode(file_get_contents($file));
}
$chunk = array_chunk($arr,50);

After getting all the results in single array you can use array_chunk.

Refer this : http://www.w3schools.com/php/func_array_chunk.asp

Upvotes: 1

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