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# stat

(PHP 3, PHP 4 , PHP 5)

stat -- Gives information about a file

## Description

array stat ( string filename)

Gathers the statistics of the file named by filename. If filename is a symbolic link, statistics are from the file itself, not the symlink. lstat() is identical to stat() except it would instead be based off the symlinks status.

In case of error, stat() returns `FALSE`. It also will throw a warning.

Returns an array with the statistics of the file with the following elements. This array is zero-based. In addition to returning these attributes in a numeric array, they can be accessed with associative indices, as noted next to each parameter; this is available since PHP 4.0.6:

表格 1.stat() and fstat() result format

Numeric | Associative (since PHP 4.0.6) | Description
--- | --- | ---
0 | dev | device number
1 | ino | inode number
2 | mode | inode protection mode
3 | nlink | number of links
4 | uid | userid of owner
5 | gid | groupid of owner
6 | rdev | device type, if inode device *
7 | size | size in bytes
8 | atime | time of last access (Unix timestamp)
9 | mtime | time of last modification (Unix timestamp)
10 | ctime | time of last inode change (Unix timestamp)
11 | blksize | blocksize of filesystem IO *
12 | blocks | number of blocks allocated

* - only valid on systems supporting the st_blksize type--other systems (i.e. Windows) return -1.

> 備注:此函數的結果會被快取。詳細資訊請參考 clearstatcache()。

> 心得:As of PHP 5.0.0 this function can also be used with some URL wrappers. Refer to 附錄 L for a listing of which wrappers support stat() family of functionality.

See also lstat(), fstat(), filemtime(), and filegroup().

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