constant FILE_EXISTS_RENAME

Flag for dealing with existing files: Appends number until name is unique.

Related topics

File interface
Common file handling functions.

File

includes/file.inc, line 51
API for handling file uploads and server file management.

Code

define('FILE_EXISTS_RENAME', 0)

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https://api.drupal.org/api/drupal/includes!file.inc/constant/FILE_EXISTS_RENAME/7.x