inserting Multidimensional php array into mysql table - php

Question

This is the multidimensional array i have. I am new to Php ..i want to input the name,folderid and upload at into an sql table but am stuck at the array part. i need help
Array
(
[status] => 200
[msg] => OK
[result] => Array
(
[folders] => Array
(
[0] => Array
(
[id] => 1861013
[name] => .videothumb
)
)
[files] => Array
(
[0] => Array
(
[name] => wildlife.mp4
[cblock] =>
[sha1] => d5d4e1001f98f70324ef4f84ccd6d683f653c513
[folderid] => 1861011
[upload_at] => 1487016733
[status] => active
[size] => 558253404
[link] => link here
[download_count] => 0
[cstatus] => ok
)
)
)
)
here is the mysql insert code that i tried to use to insert data into the table but all i get in the database are zeros
$st = $dbh->prepare("INSERT INTO movies(name, upload_at, link, folderid)
VALUES (:field1, :field2, :field3, :field4)");
// bind variables to insert query params
$st->bindParam(1, $name);
$st->bindParam(2, $uploadat );
$st->bindParam(3, $link);
$st->bindParam(4, $folderid);
$json = file_get_contents($filename);
//convert json object to php associative array
$data = json_decode($json, true);
// loop through the array
foreach ($data as $item)
{ $name = $item['result']['folders'][0]['id'];
$uploadat = $item['result']['files'][0]['upload_at'];
$link = $item['result']['files'][0]['link'];
$folderid = $item['result']['files'][0]['folderid'];
echo $name;
echo $folderid;
// execute insert query
$st->execute(array(':field1'=>$name,
':field2'=>$uploadat,
':field3'=>$link,
':field4'=>$folderid));
}

Answer 1

Because the array structure doesn't nest the files subarray inside of the folders subarray, I am assuming that folders' indices correspond with files' indices.
foreach($data["result"]["folders"] as $index=>$subarray){
$st->execute(array(':field1'=>$subarray["id"],
':field2'=>$data["result"]["files"][$index]["uploadat"],
':field3'=>$data["result"]["files"][$index]["link"],
':field4'=>$data["result"]["files"][$index]["folderid"]));
}
Suspiciously, $data["result"]["files"][$index]["folderid"] doesn't match $subarray["id"] in your sample array.
This snippet will need to be modified if a array_search() for folderid is required.