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Description
$filename
) : array
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.
Return Values
| Numeric | Associative | 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 512-byte blocks allocated ** |
** Only valid on systems supporting the st_blksize type - other systems (e.g. Windows) return -1.
In case of error, stat() returns FALSE.
Note: Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB.
Examples
Example #1 stat() example
<?php
/* Get file stat */
$stat = stat('C:\php\php.exe');
/*
* Print file access time, this is the same
* as calling fileatime()
*/
echo 'Access time: ' . $stat['atime'];
/*
* Print file modification time, this is the
* same as calling filemtime()
*/
echo 'Modification time: ' . $stat['mtime'];
/* Print the device number */
echo 'Device number: ' . $stat['dev'];
?>
Example #2 Using stat() information together with touch()
<?php
/* Get file stat */
$stat = stat('C:\php\php.exe');
/* Did we failed to get stat information? */
if (!$stat) {
echo 'stat() call failed...';
} else {
/*
* We want the access time to be 1 week
* after the current access time.
*/
$atime = $stat['atime'] + 604800;
/* Touch the file */
if (!touch('some_file.txt', time(), $atime)) {
echo 'Failed to touch file...';
} else {
echo 'touch() returned success...';
}
}
?>
Notes
Note:
Note that time resolution may differ from one file system to another.
Note: The results of this function are cached. See clearstatcache() for more details.
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to Supported Protocols and Wrappers to determine which wrappers support stat() family of functionality.
See Also
- lstat() - Gives information about a file or symbolic link
- fstat() - Gets information about a file using an open file pointer
- filemtime() - Gets file modification time
- filegroup() - Gets file group
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.stat.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
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The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.
