``` <?php $a = get_msectime(); $b = get_microtime_format($a*0.001); $c = get_data_format($b); echo $a; echo "<pre>"; echo $b; echo "<pre>"; echo $c; //返回当前的毫秒时间戳 function get_msectime() { list($msec, $sec) = explode(' ', microtime()); $msectime = (float)sprintf('%.0f', (floatval($msec) + floatval($sec)) * 1000); return $msectime; } /** *时间戳 转 日期格式 ： 精确到毫秒，x代表毫秒 */ function get_microtime_format($time) { if(strstr($time,'.')){ sprintf("%01.3f",$time); //小数点。不足三位补0 list($usec, $sec) = explode(".",$time); $sec = str_pad($sec,3,"0",STR_PAD_RIGHT); //不足3位。右边补0 }else{ $usec = $time; $sec = "000"; } $date = date("Y-m-d H:i:s.x",$usec); return str_replace('x', $sec, $date); } /** 时间日期转时间戳格式，精确到毫秒， * */ function get_data_format($time) { list($usec, $sec) = explode(".", $time); $date = strtotime($usec); $return_data = str_pad($date.$sec,13,"0",STR_PAD_RIGHT); //不足13位。右边补0 return $return_data; } ```