#!/usr/bin/php
<?
$count = 0;
$alreadySeen = array();
fputs(STDERR, 'findArrayKeys ');
while ($author = fgets(STDIN))
{
	$count++;
	$array = json_decode($author, true);
	if ($count % 100 == 0) fputs(STDERR, '.');
	if ($count % 4000 == 0) fputs(STDERR, "$count\nfindArrayKeys ");
        parseArray($array);
}
sort($alreadySeen);
echo "\n\n";
foreach($alreadySeen as $key)
{
    echo $key."\n";
}

function parseArray($array, $prefix = '')
{
    global $alreadySeen;
    foreach ($array as $key => $value)
    {
       if (!in_array($prefix . $key, $alreadySeen))
       {
           $alreadySeen[] = $prefix . $key;
       }
       if (is_array($value))
       {
           parseArray($value, "$prefix$key\\");
       }
    }
}

?>