- json_decode: documentation ( source)
<?php
$json = '{"1 filename.doc":{"name":"filename.doc","url":"https://example.com/filename.doc","file":"/var/www/example.com/filename.doc","type":"application/msword","size":50688}}';
$jsonArray = json_decode($json, true);
foreach($jsonArray as $file=>$fileAttributes) {
echo '<a href="'.$fileAttributes['url'].'">'.$fileAttributes['name'].'</a>';
}