Description:
------------
The "Wrapper Summary" table states that all three wrappers allow writing. That does not seem to be the case for "zip:". My test code fails when trying to write and docs for ZipArchive::getStream() <http://es2.php.net/ziparchive-getstream> clearly state that the returned file handler "only supports read operations".

---
From manual page: http://www.php.net/wrappers.compression#Options
---


Test script:
---------------
<?php

// Create test archive
$zip = new ZipArchive;
$res = $zip->open('./foo.zip', ZipArchive::CREATE);
if ($res === TRUE) {
    $zip->addFromString('bar.txt', 'Lorem ipsum dolor sit amet.');
    $zip->close();
} else {
    die('Could not create ZIP archive');
}

// Read through fopen() wrapper
$fp = fopen('zip://./foo.zip#bar.txt', 'r');
if( $fp ){
	while( !feof($fp) ){
		echo fread($fp, 8192);
	}
	fclose($fp);
}

// Write through fopen() wrapper
$fp = fopen('zip://./foo.zip#bar.txt', 'w');
if( $fp ){
	fwrite($fp, 'Consectetur adipisicing elit.');
	fclose($fp);
}

?>

Expected result:
----------------
Lorem ipsum dolor sit amet.

Actual result:
--------------
Warning: fopen(zip://./foo.zip#bar.txt) [http://es.php.net/function.fopen]: failed to open stream: operation failed in C:\tmp\test.php on line 23