mkdir
(PHP 4, PHP 5)
mkdir — Makes directory
Description
$pathname
[, int $mode = 0777
[, bool $recursive = false
[, resource $context
]]] )Attempts to create the directory specified by pathname.
Parameters
-
pathname -
The directory path.
-
mode -
The mode is 0777 by default, which means the widest possible access. For more information on modes, read the details on the chmod() page.
Note:
modeis ignored on Windows.Note that you probably want to specify the mode as an octal number, which means it should have a leading zero. The mode is also modified by the current umask, which you can change using umask().
-
recursive -
Allows the creation of nested directories specified in the
pathname. -
context -
Note: Context support was added with PHP 5.0.0. For a description of contexts, refer to Streams.
Return Values
Returns TRUE on success or FALSE on failure.
Changelog
| Version | Description |
|---|---|
| 5.0.0 |
The recursive parameter was added
|
| 5.0.0 | As of PHP 5.0.0 mkdir() can also be used with some URL wrappers. Refer to Supported Protocols and Wrappers for a listing of which wrappers support mkdir() |
| 4.2.0 |
The mode parameter became optional.
|
Examples
Example #1 mkdir() example
<?php
mkdir("/path/to/my/dir", 0700);
?>
Example #2 mkdir() using the recursive parameter
<?php
// Desired folder structure
$structure = './depth1/depth2/depth3/';
// To create the nested structure, the $recursive parameter
// to mkdir() must be specified.
if (!mkdir($structure, 0777, true)) {
die('Failed to create folders...');
}
// ...
?>
Errors/Exceptions
Emits an E_WARNING level error if the directory
already exists.
Emits an E_WARNING level error if the relevant
permissions prevent creating the directory.
Notes
Note: When safe mode is enabled, PHP checks whether the directory in which the script is operating has the same UID (owner) as the script that is being executed.
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с файловой системой
- Функции для работы с файловой системой
- basename
- chgrp
- chmod
- chown
- clearstatcache
- copy
- delete
- dirname
- disk_free_space
- disk_total_space
- diskfreespace
- fclose
- feof
- fflush
- fgetc
- fgetcsv
- fgets
- fgetss
- file_exists
- file_get_contents
- file_put_contents
- file
- fileatime
- filectime
- filegroup
- fileinode
- filemtime
- fileowner
- fileperms
- filesize
- filetype
- flock
- fnmatch
- fopen
- fpassthru
- fputcsv
- fputs
- fread
- fscanf
- fseek
- fstat
- ftell
- ftruncate
- fwrite
- glob
- is_dir
- is_executable
- is_file
- is_link
- is_readable
- is_uploaded_file
- is_writable
- is_writeable
- lchgrp
- lchown
- link
- linkinfo
- lstat
- mkdir
- move_uploaded_file
- parse_ini_file
- parse_ini_string
- pathinfo
- pclose
- popen
- readfile
- readlink
- realpath_cache_get
- realpath_cache_size
- realpath
- rename
- rewind
- rmdir
- set_file_buffer
- stat
- symlink
- tempnam
- tmpfile
- touch
- umask
- unlink
Коментарии
This is an annotation from Stig Bakken:
The mode on your directory is affected by your current umask. It will end
up having (<mkdir-mode> and (not <umask>)). If you want to create one
that is publicly readable, do something like this:
<?php
$oldumask = umask(0);
mkdir('mydir', 0777); // or even 01777 so you get the sticky bit set
umask($oldumask);
?>
mkdir, file rw, permission related notes for Fedora 3////
If you are using Fedora 3 and are facing permission problems, better check if SElinux is enabled on ur system. It add an additional layer of security and as a result PHP cant write to the folder eventhough it has 777 permissions. It took me almost a week to deal with this!
If you are not sure google for SElinux or 'disabling SELinux' and it may be the cure! Best of luck!
When using the recursive parameter bear in mind that if you're using chmod() after mkdir() to set the mode without it being modified by the value of uchar() you need to call chmod() on all created directories. ie:
<?php
mkdir('/test1/test2', 0777, true);
chmod('/test1/test2', 0777);
?>
May result in "/test1/test2" having a mode of 0777 but "/test1" still having a mode of 0755 from the mkdir() call. You'd need to do:
<?php
mkdir('/test1/test2', 0777, true);
chmod('/test1', 0777);
chmod('/test1/test2', 0777);
?>
Remember to use clearstatcache()
... when working with filesystem functions.
Otherwise, as an example, you can get an error creating a folder (using mkdir) just after deleting it (using rmdir).
When creating a file using mkdir() the default root will be the DocumentRoot (in XAMPP) itself.
C:\xampp\htdocs\project/includes/something.php
If you use mkdir("myfile") in something.php, instead of creating the folder in includes, php will create it in the project folder