I am creating a plugin in WordPress Version 3.4.2. When the administrator submits a form, a new folder is created inside my plugin directory and a file saved in this new folder.

But it gives me the following error:

error : The file has not been created 

$dir = plugins_url()."/folder-name/; 

The above code returns the following path:


mkdir($dir, 0777, true);

3 Answers 3


Do not use the plugin directory to store new files.

  • During an update the plugin directory will be erased by WordPress. And all files in it too.
  • The plugin directory might be read-only in some setups (I do that always).

Use the regular uploads directory for that.

And 0777 is never a good idea. Write access for everyone is probably not what your users want.


You can use plugin_dir_path in your plugin to get current path in file system.

define( 'YOURPLUGIN_PATH', plugin_dir_path(__FILE__) );

code of the function itself

 * Gets the filesystem directory path (with trailing slash) for the plugin __FILE__ passed in
 * @package WordPress
 * @subpackage Plugin
 * @since 2.8
 * @param string $file The filename of the plugin (__FILE__)
 * @return string the filesystem path of the directory that contains the plugin
    function plugin_dir_path( $file ) {
        return trailingslashit( dirname( $file ) );
  • my path is correct, there is no problem with plugins_url() but mkdir() not creating the folder Nov 25, 2012 at 11:48
  • 1
    Do you understand that You tring to create directory on a file system with argument of URL? You need PATH of file which you use with plugin_dir_path help. defining a constant will make less code just typing $dir = YOURPLUGIN_PATH."/folder-name/; (in case if you had define your constant).. Nov 25, 2012 at 12:08

In short: you need a PATH, not an URL

In long: Do not create directories in your plugin folder (see Toscho's answer). Use the constant ´WP_CONTENT_DIR´ for the path instead of plugins_url(). This will create the directory within ´wp-content´ (on a standrad installation). Maybe you will define a sub-directory where you creates the directories.

define( 'STORING_DIRECTORY', WP_CONTENT_DIR . '/my_plugin_storing_directory/' );
$dir = STORING_DIRECTORY . '/folder-name/';

Maybe you want to use the upload directory to create your directories. Than you should use wp_upload_dir() to get the path.

$upload_dir = wp_upload_dir();
$dir = $upload_dir['basedir'] . '/folder-name/';
  • The upload directories are the only ones with guaranteed write access. You should not expect write access for WP_CONTENT_DIR.
    – fuxia
    Nov 25, 2012 at 21:47

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