| Re: Ignoring Case on directories [message #171174 is a reply to message #171170] |
Tue, 28 December 2010 21:20   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
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Senior Member |
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On 12/28/2010 3:33 PM, jwcarlton wrote:
> I think that the answer to this is "no", but I thought I'd ask :-)
>
> I'm wanting to open a file where the directory path is given by the
> user. For example:
>
> if (is_file("/path/to/" . $_GET['directory'] . "/file.txt"))
> $example = FILE("/path/to/" . $_GET['directory'] . "/file.txt");
>
> else
> // return error
>
> // please ignore any typos; I just typed this up here for the example
>
> The thing is, the directory path could be, say, /path/to/SomeDirectory/
> file.txt, but the user could enter "somedirectory"; in which case,
> they would get the error.
>
> Currently, I keep all of the directory names in a MySQL database, then
> before opening file.txt, I search for the directory in MySQL (which is
> case insensitive), then load the path based on the name in the
> database instead of what's given. But during peak hours, this method
> can result in several hundred MySQL queries per minute.
>
> Before this, I just used opendir to load all of the directories into
> an array on the fly, then did a case insensitive search through the
> array. But, when I started having 90,000 directories (30,000 in 3
> separate parent directories), this was considerably slower than using
> MySQL.
>
> So, the MySQL search works, but the question is, can PHP do a
> directory lookup that's case insensitive; and, preferably, return the
> case-correct directory name?
You can search directory names in PHP, then do a case-insensitive string
comparison to find a match. If you get a match, use the returned directory.
But the question begs - why are you even forcing your users to key n a
directory name? Why don't you have the directories selectable on your
page (and keyed to the user, if necessary)?
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
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