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POPHP language barrier design problem
 

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    <h2>Background</h2> <p>I need to design a set of utility classes that will ease out file system access to several types of remote services (Local, FTP, WebDAV, SVN, SSH), and I cannot seem to get a "perfect" design mostly because of a language barrier - I feel that every design path I have chosen was scraped because PHP did not have support for a specific feature.</p> <p>I find this frustrating and I'm out of ideas.</p> <h2>Requirements</h2> <p>A base abstract class or interface for <code>FileSystem</code> which every other file system type inherits. The <code>FileSystem</code> class (and it's subclasses) are a 'driver' that implement basic FS operations such as 'move', 'remove', 'create' and so on. </p> <p>Those driver operations should not be exposed to the class user, instead, <code>FileSystem</code> is also a factory that fetches file info records upon request.</p> <p>A file is also based on an abstract class or interface <code>File</code> and <code>Directory</code>, which the implementors of a <code>FileSystem</code> subclass may or may not subclass. Users of a <code>FileSystem</code> class do not 'care' about the type of a <code>File</code> (<code>SshFile</code> and <code>SvnFile</code> should work the same).</p> <p>The <code>File</code> (and <code>Directory</code>) class should be the one to talk to the file system driver that created it in some way without the user being able to do it manually through the <code>FileSystem</code> driver.</p> <h2>What I have tried</h2> <p>Naturally I made <code>FileSystem</code> an abstract class, then proceeded to code the class <code>File</code> and turns out that PHP has no <code>friend</code> support, so <code>File</code> cannot have access to <code>FileSystem</code>'s protected driver methods.</p> <p>Another idea that got scraped was a class inside a class - <code>FileSystem</code> and <code>FileSystem::File</code> - PHP does not have nested classes.</p> <p>Divide <code>FileSystem</code> into <code>FileSystemDriver</code> and <code>FileSystemFactory</code>, but that gets me into the same original problem.</p> <h2>300 Reputation points in bounty reward</h2> <p>To a solver of an original idea to PHP's lack of programming utilities needed for encapsulation.</p>
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    1. COWait, how come I can't set a bounty?
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    2. CO@LiraNuna: lol. You have to wait a few days.
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    3. CODrats. I will still offer then bounty then choose the best answer if it comes up before that.
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