retry

<?php
function retry($retries, callable $fn)
{
    while (true)
    {
        try {
            return $fn();
        } catch (\Exception $e) {
            if (!$retries) {
                throw new \Exception('', 0, $e);
            }
            $retries--;
        }
    }
}
$fn = function() {
        if ($GLOBALS['counter'] > 0)
        {
                $GLOBALS['counter']--;
                throw new \Exception('Try again');
        }
        return true;
};
$start = microtime(true);
try {
        $GLOBALS['counter'] = 999999;
        retry(1000000, $fn);
} catch (\Exception $e) {}
echo 'Retry finished in: ' . (microtime(true) -$start) . "\n";