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win_is_writable › WordPress Function

Since2.8.0
Deprecatedn/a
› win_is_writable ( $path )
Parameters:
  • (string) $path Windows path to check for write-ability.
    Required: Yes
See:
Returns:
  • (bool) Whether the path is writable.
Defined at:
Codex:

Workaround for Windows bug in is_writable() function

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 interpret the OS ACL.


Related Functions: wp_is_writable, wp_iso_descrambler, _get_list_table, wp_is_mobile, is_countable

Source 

function win_is_writable( $path ) {
	if ( '/' === $path[ strlen( $path ) - 1 ] ) {
		// If it looks like a directory, check a random file within the directory.
		return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp' );
	} elseif ( is_dir( $path ) ) {
		// If it's a directory (and not a file), check a random file within the directory.
		return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' );
	}

	// Check tmp file for read/write capabilities.
	$should_delete_tmp_file = ! file_exists( $path );

	$f = @fopen( $path, 'a' );
	if ( false === $f ) {
		return false;
	}
	fclose( $f );

	if ( $should_delete_tmp_file ) {
		unlink( $path );
	}

	return true;
}