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stat() function in PHP


The stat() function returns information about a file.

Note − The results of the stat() function differs from server to server.

The function returns an array with the below given elements.

  • [0] or [dev] - Device number
  • [1] or [ino] - Inode number
  • [2] or [mode] - Inode protection mode
  • [3] or [nlink] - Number of links
  • [4] or [uid] - User ID of owner
  • [5] or [gid] - Group ID of owner
  • [6] or [rdev] - Inode device type
  • [7] or [size] - Size in bytes
  • [8] or [atime] - Last access time as Unix timestamp
  • [9] or [mtime] - Last modified time as Unix timestamp
  • [10] or [ctime] - Last inode change time as Unix timestamp
  • [11] or [blksize] - Blocksize of filesystem IO
  • [12] or [blocks] - Number of blocks allocated

Syntax

stat(file_path)

Parameters

  • file_path − The path of the file to check.

Return

The lstat() function returns the elements shown above.

Example

<?php
   print_r(stat("demo.txt"));
?>

Output

Array
(
[0] => 0
[1] => 0
[2] => 33206
[3] => 1
[4] => 0
[5] => 0
[6] => 0
[7] => 120
[8] => 17128173529
[9] => 1984185875
[10] => 1294322653
[11] => -1
[12] => -1
[dev] => 0
[ino] => 0
[mode] => 33206
[nlink] => 1
[uid] => 0
[gid] => 0
[rdev] => 0
[size] => 120
[atime] => 1718173529
[mtime] => 1984185875
[ctime] => 1294322653
[blksize] => -1
[blocks] => -1
)

Let us see another example.

Example

<?php
   $stat = stat('new.txt');
   echo 'File mode = ' .$stat['mode'];
   echo '<br />Last Modification time of the file = ' .$stat['mtime'];
?>

Output

File mode = 33206
Last Modification time of the file = 1241387935