Руководство по PHP
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# dio_truncate

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.4)

dio_truncate -- Truncates file descriptor fd to offset bytes

## Описание

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.

> Замечание: Для Windows-платформ эта функция не реализована.

## Список параметров

`fd`

  The file descriptor returned by dio_open().

`offset`

  The offset in bytes.

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

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