umask(3) [php man page]

UMASK(3)								 1								  UMASK(3)

umask - Changes the current umask

SYNOPSIS

       int umask ([int	$mask])

DESCRIPTION

       umask(3)  sets PHP's umask to $mask & 0777 and returns the old umask. When PHP is being used as a server module, the umask is restored when
       each request is finished.

PARAMETERS

	      o $mask
		- The new umask.

RETURN VALUES

       umask(3) without arguments simply returns the current umask otherwise the old umask is returned.

EXAMPLES

       Example #1

	      umask(3) example

	      <?php
	      $old = umask(0);
	      chmod("/path/some_dir/some_file.txt", 0755);
	      umask($old);

	      // Checking
	      if ($old != umask()) {
		  die('An error occurred while changing back the umask');
	      }
	      ?>

NOTES

       Note

	       Avoid using this function in multithreaded webservers. It is better to change the file permissions with chmod(3) after creating the
	      file.  Using  umask(3) can lead to unexpected behavior of concurrently running scripts and the webserver itself because they all use
	      the same umask.

PHP Documentation Group 														  UMASK(3)

umask(2)							   System Calls 							  umask(2)

NAME

       umask - set and get file creation mask

SYNOPSIS

       #include <sys/types.h>
       #include <sys/stat.h>

       mode_t umask(mode_t cmask);

DESCRIPTION

       The  umask() function sets the  process's file mode creation mask to cmask and returns the previous value of the mask. Only the access per-
       mission bits of cmask and the file mode creation mask are used. The mask is inherited by child processes. See intro(2) for more information
       on masks.

RETURN VALUES

       The previous value of the file mode creation mask is returned.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mkdir(1), sh(1), intro(2), chmod(2), creat(2), mknod(2), open(2), stat.h(3HEAD), attributes(5), standards(5)

SunOS 5.10							    28 Dec 1996 							  umask(2)