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win_is_writable ›

Since2.8.0
已弃用n/a
win_is_writable ( $path )
参数:
  • (string) $path Windows path to check for write-ability.
    Required: Yes
查看:
返回:
  • (bool) Whether the path is writable.
定义在:
文档:

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 interprate the OS ACL.



源码

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 ( $f === false ) {
		return false;
	}
	fclose( $f );
	if ( $should_delete_tmp_file ) {
		unlink( $path );
	}
	return true;
}