http://www.shigeweb.jp/php/project_p/?section=miniref&page=date#microtime
$stamp = microtime();
echo $stamp;list($msec, $sec) = explode(" ", $stamp);
echo (float)$sec + (float)$msec;
http://www.shigeweb.jp/php/project_p/?section=miniref&page=date#microtime
$stamp = microtime();
echo $stamp;list($msec, $sec) = explode(" ", $stamp);
echo (float)$sec + (float)$msec;