It takes a microsecond, but I find that the number of digits is not long or short.

Get the time in microseconds, but I found out how the number of digits suddenly grows or decreases. public function getmicrotime ()
{
List ($ usec, $ sec) = explode ("", microtime ());
// Return (float) $ usec + (float) $ sec );
Return date ('ymdhis '). $ usec * 1000000;
}


I used the order number precise to microseconds. But I find that there is only one missing person. what is the problem.
Thank you.

Reply to discussion (solution)

You just $ usec * 1000000
What if $ usec equals 0.0012345?
Isn't it 1 million if it is increased by 12345 times? The preceding values are not 0.

List ($ usec, $ sec) = explode ("", microtime ());
Return date ('ymdhis ', $ sec). substr ($ usec, 2 );

Format the number and determine the number. if not, add 0.