filectime(3) [php man page]

FILECTIME(3)								 1							      FILECTIME(3)

filectime - Gets inode change time of file

SYNOPSIS

       int filectime (string  $filename)

DESCRIPTION

	Gets the inode change time of a file.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns the time the file was last changed, or FALSE on failure. The time is returned as a Unix timestamp.

EXAMPLES

       Example #1

	      A filectime(3) example

	      <?php

	      // outputs e.g.  somefile.txt was last changed: December 29 2002 22:16:23.

	      $filename = 'somefile.txt';
	      if (file_exists($filename)) {
		  echo "$filename was last changed: " . date("F d Y H:i:s.", filectime($filename));
	      }

	      ?>

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	       Note:  In most Unix filesystems, a file is considered changed when its inode data is changed; that is, when the permissions, owner,
	      group, or other metadata from the inode is updated. See also filemtime(3) (which is what you want to use when  you  want	to  create
	      "Last Modified" footers on web pages) and fileatime(3).

       Note

	       Note  also  that in some Unix texts the ctime of a file is referred to as being the creation time of the file. This is wrong. There
	      is no creation time for Unix files in most Unix filesystems.

       Note

	      Note that time resolution may differ from one file system to another.

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      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(3) family of functionality.

SEE ALSO

       filemtime(3).

PHP Documentation Group 													      FILECTIME(3)

FILEPERMS(3)								 1							      FILEPERMS(3)

fileperms - Gets file permissions

SYNOPSIS

       int fileperms (string  $filename)

DESCRIPTION

	Gets permissions for the given file.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns the file's permissions as a numeric mode. Lower bits of this mode are the same as the permissions expected by chmod(3), however on
       most platforms the return value will also include information on the type of file given as $filename. The examples below demonstrate how to
       test the return value for specific permissions and file types on POSIX systems, including Linux and Mac OS X.

	For  local  files,  the specific return value is that of the st_mode member of the structure returned by the C library's stat(3) function.
       Exactly which bits are set can vary from platform to platform, and looking up your specific  platform's	documentation  is  recommended	if
       parsing the non-permission bits of the return value is required.

EXAMPLES

       Example #1

	      Display permissions as an octal value

	      <?php
	      echo substr(sprintf('%o', fileperms('/tmp')), -4);
	      echo substr(sprintf('%o', fileperms('/etc/passwd')), -4);
	      ?>

	      The above example will output:

	      1777
	      0644

       Example #2

	      Display full permissions

	      <?php
	      $perms = fileperms('/etc/passwd');

	      if (($perms & 0xC000) == 0xC000) {
		  // Socket
		  $info = 's';
	      } elseif (($perms & 0xA000) == 0xA000) {
		  // Symbolic Link
		  $info = 'l';
	      } elseif (($perms & 0x8000) == 0x8000) {
		  // Regular
		  $info = '-';
	      } elseif (($perms & 0x6000) == 0x6000) {
		  // Block special
		  $info = 'b';
	      } elseif (($perms & 0x4000) == 0x4000) {
		  // Directory
		  $info = 'd';
	      } elseif (($perms & 0x2000) == 0x2000) {
		  // Character special
		  $info = 'c';
	      } elseif (($perms & 0x1000) == 0x1000) {
		  // FIFO pipe
		  $info = 'p';
	      } else {
		  // Unknown
		  $info = 'u';
	      }

	      // Owner
	      $info .= (($perms & 0x0100) ? 'r' : '-');
	      $info .= (($perms & 0x0080) ? 'w' : '-');
	      $info .= (($perms & 0x0040) ?
			  (($perms & 0x0800) ? 's' : 'x' ) :
			  (($perms & 0x0800) ? 'S' : '-'));

	      // Group
	      $info .= (($perms & 0x0020) ? 'r' : '-');
	      $info .= (($perms & 0x0010) ? 'w' : '-');
	      $info .= (($perms & 0x0008) ?
			  (($perms & 0x0400) ? 's' : 'x' ) :
			  (($perms & 0x0400) ? 'S' : '-'));

	      // World
	      $info .= (($perms & 0x0004) ? 'r' : '-');
	      $info .= (($perms & 0x0002) ? 'w' : '-');
	      $info .= (($perms & 0x0001) ?
			  (($perms & 0x0200) ? 't' : 'x' ) :
			  (($perms & 0x0200) ? 'T' : '-'));

	      echo $info;
	      ?>

	      The above example will output:

	      -rw-r--r--

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      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(3) family of functionality.

SEE ALSO

       chmod(3), is_readable(3), stat(3).

PHP Documentation Group 													      FILEPERMS(3)