abstract：13位時(shí)間戳生成函數(shù)如下所示：private function getMillisecond() { list($t1, $t2) = explode(' ', microtime()); return (float)sprintf('%
13位時(shí)間戳生成函數(shù)如下所示：
private function getMillisecond() {
list($t1, $t2) = explode(' ', microtime());
return (float)sprintf('%.0f',(floatval($t1)+floatval($t2))*1000);
}