Direct IO Funciones
PHP Manual

dio_truncate

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

dio_truncate Truncates file descriptor fd to offset bytes

Descripción

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.

Parámetros

fd

The file descriptor returned by dio_open().

offset

The offset in bytes.

Valores devueltos

Devuelve TRUE en caso de éxito o FALSE en caso de error.

Notas

Note: Esta función no está implementada en plataformas Windows.


Direct IO Funciones
PHP Manual