Change file/directory permissions

# eio_chmod

(PECL eio >= 0.0.1dev)

eio_chmod — Change file/directory permissions

### Description

function eio_chmod(
string `$path`,
int `$mode`,
int `$pri` = EIO_PRI_DEFAULT,
callable `$callback` = NULL,
mixed `$data` = NULL
): resource

eio_chmod() changes file, or directory permissions. The new permissions are specified by `mode`.

### Parameters

`path`
  Path to the target file or directory
  Warning

  Avoid relative paths

`mode`
  The new permissions. E.g. `0644`.
`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_chmod() returns request resource on success, or `false` on failure.

### See Also

- eio_chown() - Change file/directory ownership

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