dio_tcsetattr
dio_write
Direct IO Funções
PHP Manual

# dio_truncate

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

dio_truncate — Truncates file descriptor fd to offset bytes

### Descrição

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.

### Parâmetros

`fd`

  The file descriptor returned by dio_open().

`offset`

  The offset in bytes.

### Valor Retornado

Retorna `TRUE` em caso de sucesso ou `FALSE` em falhas.

### Notas

> Nota: esta função não é implementada na plataforma Windows

dio_tcsetattr
dio_write
Direct IO Funções
PHP Manual