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Errata -
MC Press Online Forums
However the point of this sample code was to demonstrate the usage of the is_dir, is_file and is_link. I think we made the statement several times throughout the book that the code samples are not to be confused with production code. This being both from a best practices standpoint and an error handling standpoint.
Why does the script hardcode the directory separator? In Windows, it's a backslash, so this code is already not portable. And the file name might need to be encoded (safe) before sending to browser. Try this instead:
define(DS, DIRECTORY_SEPARATOR) ; // ... is / on nix and \ on Windows
define(BR,'<br>') ;
$dirName = DS . 'etc';
$dir = opendir($dirName);
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