eio_truncate

PECL eio >= 0.0.1dev
eio_truncate - Truncate a file
Manual

eio_truncate(
     string$path,
     [int$offset = 0],
     [int$pri = EIO_PRI_DEFAULT],
     [callable$callback = NULL],
     [mixed$data = NULL]
): resource

eio_truncate causes the regular file named by path to be truncated to a size of precisely length bytes

Parameters

path

File path

offset

Offset from beginning of the file.

pri

The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or null. If null passed, pri internally is set to EIO_PRI_DEFAULT.

callback

callback function is called when the request is done. It should match the following prototype:

void callback(mixed $data, int $result[, resource $req]);
data

is custom data passed to the request.

result

request-specific result value; basically, the value returned by corresponding system call.

req

is optional request resource which can be used with functions like eio_get_last_error

data

Arbitrary variable passed to callback.

Return Values

eio_busy returns request resource on success, or false on failure.

Related Functions

Function eio_truncate:

  • Manual

Eio Functions

Most used PHP functions