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  • 【PHP】 毫秒级时间戳和日期格式转换

    在并发量搞得情况下。需要开启毫秒级运算

    mysql  支持: 

    `create_time` datetime(3) DEFAULT NULL COMMENT '创建时间',

    效果

     PHP 代码实现: 

    <?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;
         }

     效果: 

     

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  • 原文地址:https://www.cnblogs.com/richerdyoung/p/8192793.html
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