How can the script handle navigating back to the previous folder when the entry is set to "."?

When the entry is set to ".", it typically represents the current directory. To handle navigating back to the previous folder in this case, you can use the PHP "dirname()" function to retrieve the parent directory of the current directory. By using this function, you can effectively navigate back to the previous folder. 

$currentDirectory = "/path/to/current/directory";
$previousDirectory = dirname($currentDirectory);
echo $previousDirectory;

Keywords

PHP script navigating folder "."

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