- var_dump: documentation ( source)
- json_decode: documentation ( source)
<?php
$data = json_decode('{
data: [[64,87,56],[68,76,58],[68,27,73],[74,99,42],[94,74,60],[97,36,79],[7,93,87],[51,69,40],[38,23,33],[57,86,31]]
}', true);
var_dump($data);