Definition and Usage
定义和用法

The fstat() function returns information about an open file.
fstat()函数函数的作用是：返回已打开的文件信息。

This function returns an array with the following elements:
这个函数将返回一个包含下列元素的数组：

• [0] or [dev] - Device number
  [0] 或 [dev] –代表（驱动）设备的数字
• [1] or [ino] - Inode number
  [1] 或 [ino] – 代表Inode的数字
• [2] or [mode] - Inode protection mode
  [2] 或 [mode] – Inode保护模式
• [3] or [nlink] - Number of links
  [3] 或 [nlink] –代表连接的数字
• [4] or [uid] - User ID of owner
  [4] 或 [uid] – 拥有者的用户id[User ID]
• [5] or [gid] - Group ID of owner
  [5] 或 [gid] – 拥有者的群id[Group ID]
• [6] or [rdev] - Inode device type
  [6] 或 [rdev] – Inode设备类型
• [7] or [size] - Size in bytes
  [7] 或 [size] – 字节数大小
• [8] or [atime] - Last access (as Unix timestamp)
  [8] 或 [atime] – 最后一次访问（Unix时间戳[timestamp]）
• [9] or [mtime] - Last modified (as Unix timestamp)
  [9] 或 [mtime] -最后一次修改（Unix时间戳[timestamp]）
• [10] or [ctime] - Last inode change (as Unix timestamp)
  [10] 或 [ctime] -最后一次修改inode（Unix时间戳[timestamp]）
• [11] or [blksize] - Blocksize of filesystem IO (if supported)
  [11] 或 [blksize] – 文件系统IO的区域大小[Blocksize of filesystem IO]（必须在支持这个元素的情况下）
• [12] or [blocks] - Number of blocks allocated
  [12] 或 [blocks] – 指派的空间数量

Syntax
语法

fstat(file)

Tips and Notes
提示和注意点

Note: The results from this function will differ from server to server. The array may contain the number index, the name index, or both.
注意：从这个函数返回的结果与“服务器到服务器[server to server]”的结果是不相同的。这个数组包含了数字索引、名称索引或同时包含上述二者。

Tip: This function is similar to stat(), except that with this function the file must be open.
提示：fstat()函数与stat()大致类似。唯一的不同点就是：fstat()函数在使用时，文件必须已经打开。

Example
案例

<?php
$file = fopen("test.txt","r");
print_r(fstat($file));
fclose($file);
?> 

The output of the code above could be:
上述代码将输出下面的结果：

Array
(
[0] => 0
[1] => 0
[2] => 33206
[3] => 1
[4] => 0
[5] => 0
[6] => 0
[7] => 92
[8] => 1141633430
[9] => 1141298003
[10] => 1138609592
[11] => -1
[12] => -1
[dev] => 0
[ino] => 0
[mode] => 33206
[nlink] => 1
[uid] => 0
[gid] => 0
[rdev] => 0
[size] => 92
[atime] => 1141633430
[mtime] => 1141298003
[ctime] => 1138609592
[blksize] => -1
[blocks] => -1
)

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