win_is_writable

Workaround for Windows bug in is_writable() function.

Description

win_is_writable( (string) $path ); 

PHP has issues with Windows ACL's for determine if a directory is writable or not, this works around them by checking the ability to open files rather than relying upon PHP to interprate the OS ACL.

Parameters (1)

0. $path (string)
Windows path to check for write-ability.

Usage

  1. if ( !function_exists( 'win_is_writable' ) ) { 
  2.     require_once ABSPATH . WPINC . '/functions.php'; 
  3. } 
  4.   
  5. // Windows path to check for write-ability. 
  6. $path = ''; 
  7.   
  8. // NOTICE! Understand what this does before running. 
  9. $result = win_is_writable($path); 
  10.     

Defined (1)

The function is defined in the following location(s).

/wp-includes/functions.php  
  1. function win_is_writable( $path ) { 
  2.  
  3.     if ( $path[strlen( $path ) - 1] == '/' ) { // if it looks like a directory, check a random file within the directory 
  4.         return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp'); 
  5.     } elseif ( is_dir( $path ) ) { // If it's a directory (and not a file) check a random file within the directory 
  6.         return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' ); 
  7.     } 
  8.     // check tmp file for read/write capabilities 
  9.     $should_delete_tmp_file = !file_exists( $path ); 
  10.     $f = @fopen( $path, 'a' ); 
  11.     if ( $f === false ) 
  12.         return false; 
  13.     fclose( $f ); 
  14.     if ( $should_delete_tmp_file ) 
  15.         unlink( $path ); 
  16.     return true; 
  17. }