dio_truncate

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

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.

Параметри

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

Връщани стойности

Връща TRUE при успех или FALSE при неуспех.

Бележки

Забележка: Тази функция не е налична на Windows платформи.

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