Usted buscó: microseconds (Coreano - Inglés)

"usec" - microseconds
"dsttime" - type of dst correction

seconds 와 microseconds 의 합을 사용해서 socket descriptor 의 시간초과 값을 설정합니다.
this is an alias for stream_set_timeout().

sets the timeout value on stream, expressed in the sum of seconds and microseconds.
sets the timeout value on stream, expressed in the sum of seconds and microseconds.

uniqid() returns a prefixed unique identifier based on the current time in microseconds. the prefix can be useful for instance if you generate identifiers simultaneously on several hosts that might happen to generate the identifier at the same microsecond. prefix can be up to 114 characters long.
the prefix can be useful for instance if you generate identifiers simultaneously on several hosts that might happen to generate the identifier at the same microsecond.

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.
this function is only available on operating systems that support the gettimeofday() system call.