microtime

microtime -- 以微秒為單位傳回 UNIX timestamp 之值

Description

string microtime (void);

Returns the string "msec sec" where sec is the current time measured in the number of seconds since the Unix Epoch (0:00:00 January 1, 1970 GMT), and msec is the microseconds part. This function is only available on operating systems that support the gettimeofday() system call.

See also time() .