dio_truncate

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5, PHP 7)

dio_truncate — Truncates file descriptor fd to offset bytes

설명

bool dio_truncate ( resource $fd , int $offset )

dio_truncate() truncates a file to at most offset bytes in size.

If the file previously was larger than this size, the extra data is lost. If the file previously was shorter, it is unspecified whether the file is left unchanged or is extended. In the latter case the extended part reads as zero bytes.

인수

fd: The file descriptor returned by dio_open().
offset: The offset in bytes.

반환값

성공 시 TRUE를, 실패 시 FALSE를 반환합니다.

주의

Note: 이 함수는 윈도우 플랫폼에서는 작동하지 않습니다.