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<?php
function steem_per_mvests() {
$url = 'https://api.steemit.com';

$data = '{"jsonrpc":"2.0", "method":"database_api.get_dynamic_global_properties", "id":1}';
$options = array(
'http' =>
array(
'header' => "Content-Type: application/json\r\n".
"Content-Length: ".strlen($data)."\r\n".
"User-Agent:SteemMention/1.0\r\n",
'method' => 'POST',
'content' => $data,
)
);
$context = stream_context_create($options);
try {
$result = file_get_contents($url, false, $context);
$r = json_decode($result, true);
$result = $r['result'];
} catch (\Exception $e) {
return false;
}
return $result['total_vesting_fund_steem']['amount'] / ($result['total_vesting_shares']['amount'] / 1e6);
}

function vests_to_sp($vests) {
$steem_per_mvests = steem_per_mvests();
if ($steem_per_mvests) {
return $vests / 1e6 * $steem_per_mvests;
} else {
return false;
}
}