chown(3) [php man page]

CHOWN(3)								 1								  CHOWN(3)

chown - Changes file owner

SYNOPSIS

       bool chown (string  $filename, mixed  $user)

DESCRIPTION

	Attempts to change the owner of the file $filename to user $user. Only the superuser may change the owner of a file.

PARAMETERS

	      o $filename
		- Path to the file.

	      o $user
		- A user name or number.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      Simple chown(3) usage

	      <?php

	      // File name and username to use
	      $file_name= "foo.php";
	      $path = "/home/sites/php.net/public_html/sandbox/" . $file_name ;
	      $user_name = "root";

	      // Set the user
	      chown($path, $user_name);

	      // Check the result
	      $stat = stat($path);
	      print_r(posix_getpwuid($stat['uid']));

	      ?>

	      The above example will output something similar to:

	      Array
	      (
		  [name] => root
		  [passwd] => x
		  [uid] => 0
		  [gid] => 0
		  [gecos] => root
		  [dir] => /root
		  [shell] => /bin/bash
	      )

NOTES

       Note

	      This function will not work on remote files as the file to be examined must be accessible via the server's filesystem.

       Note

	      When  safe  mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script
	      that is being executed.

SEE ALSO

       chmod(3), chgrp(3).

PHP Documentation Group 														  CHOWN(3)

CHMOD(3)								 1								  CHMOD(3)

chmod - Changes file mode

SYNOPSIS

       bool chmod (string  $filename, int  $mode)

DESCRIPTION

	Attempts to change the mode of the specified file to that given in $mode.

PARAMETERS

	      o $filename
		- Path to the file.

	      o $mode
		- Note that $mode is not automatically assumed to be an octal value, so to ensure the expected operation, you need to prefix $mode
		with a zero (0). Strings such as "g+w" will not work properly.

	      <?php
	      chmod("/somedir/somefile", 755);	 // decimal; probably incorrect
	      chmod("/somedir/somefile", "u+rwx,go+rx"); // string; incorrect
	      chmod("/somedir/somefile", 0755);  // octal; correct value of mode
	      ?>
	      man 1 chmod' and ' man 2 chmod'.

	      <?php
	      // Read and write for owner, nothing for everybody else
	      chmod("/somedir/somefile", 0600);

	      // Read and write for owner, read for everybody else
	      chmod("/somedir/somefile", 0644);

	      // Everything for owner, read and execute for others
	      chmod("/somedir/somefile", 0755);

	      // Everything for owner, read and execute for owner's group
	      chmod("/somedir/somefile", 0750);
	      ?>

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

NOTES

       Note

	       The current user is the user under which PHP runs. It is probably not the same user you use for normal shell  or  FTP  access.  The
	      mode can be changed only by user who owns the file on most systems.

       Note

	      This function will not work on remote files as the file to be examined must be accessible via the server's filesystem.

       Note

	       When safe mode is enabled, PHP checks whether the files or directories you are about to operate on have the same UID (owner) as the
	      script that is being executed. In addition, you cannot set the SUID, SGID and sticky bits.

SEE ALSO

       chown(3), chgrp(3), fileperms(3), stat(3).

PHP Documentation Group 														  CHMOD(3)