eio_fchmod

(PECL eio >= 0.0.1dev)

eio_fchmod — Change file permissions

说明

eio_fchmod ( mixed $fd , int $mode [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] ) : resource

eio_fchmod() changes permissions for the file specified by fd file descriptor.

参数

fd

Stream, Socket resource, or numeric file descriptor, e.g. returned by eio_open().

mode

The new permissions. E.g. 0644.

pri

请求的优先级：EIO_PRI_DEFAULT，EIO_PRI_MIN，EIO_PRI_MAX 或 NULL。如果是 NULL，pri 将设为 EIO_PRI_DEFAULT。

callback

callback 函数在请求完成时被调用。其应匹配一下原型：

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

传递给请求的用户数据。

result

针对请求的结果的值。通常是相应的系统调用返回的值。

req

可选的请求资源，可被 eio_get_last_error() 之类的函数使用。

data

Arbitrary variable passed to callback.

返回值

eio_fchmod() returns request resource on success or FALSE on error.

参见

  • eio_fchown
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