Please note that the phar stream wrapper does not work with any glob.
When you decide to move your project to phar archives you need to consider this.

The following won't work:
<?php
glob('phar://some.phar/*');
new DirectoryIterator('glob://phar://some.phar/*');
?>

While the following will work:
<?php
new DirectoryIterator('phar://some.phar/');
?>

Some Examples of how to use the stream wrapper would be really helpful.  
My floundering attempts reveal only the following:

<?php
$p = new PharData(dirname(__FILE__).'/phartest.zip', 0,'phartest',Phar::ZIP) ;

$p->addFromString('testfile.txt', 
'this is just some test text');

// This works
echo file_get_contents('phar://phartest.zip/testfile.txt');

//This Fails
file_put_contents('phar://phartest.zip/testfile.txt',
'Thist is text for testfile.txt');

$context = stream_context_create(
array('phar' =>array('compress' =>Phar::ZIP))
) ;

//This Fails
file_put_contents(
'phar://phartest.zip/testfile.txt',
'Thist is text for testfile.txt',0,$context);

// This works but only with 'r' readonly mode.
$f = fopen(
'phar://C:\\Inetpub\\wwwroot\\PACT\\test\\phartest.zip\\testfile.txt',
'r') ;
?>