Description:
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---
From manual page: http://www.php.net/ziparchive.deleteindex
---

When opening a zip with ZipArchive and then deleting a file. The method returns true, getStatusString also returns no errors, but the file still exists within the archive.

Within the opened "Session" the file is correctly removed but it really the state is not written to the physical file so the removed file is not really removed.

Test script:
---------------
<?php
$zip_filename = '/var/www/www.zip';
$zip = new ZipArchive;
if ($zip->open($zip_filename) === TRUE) {
    for ($i = 0; $i < $zip->numFiles; $i++) {
        $filename = $zip->getNameIndex($i);
        echo $filename . "\n";
        if($filename === 'b.txt') {
            echo "Could be deleted by index? " . ($zip->deleteIndex($i) ? 'yes' : 'no') . "\n";
        }
    }          
    echo "Status string before delete by name: " . $zip->getStatusString() . "\n";
    echo "Could be deleted by name? " . ($zip->deleteName('b.txt') ? 'yes' : 'no') . "\n";
    echo "Status string after delete by name: " . $zip->getStatusString() . "\n";
    $zip->close();
    echo "Verify content of zip archive:\n";
    $zip2 = new ZipArchive;
    if ($zip2->open($zip_filename) === TRUE) {
        for ($i = 0; $i < $zip2->numFiles; $i++) {
            $filename = $zip2->getNameIndex($i);
            echo $filename . "\n";
        }
    }
    $zip2->close();
}
?>

Expected result:
----------------
Output: 
a.txt
b.txt
Could be deleted by index? yes
Status string before delete by name: No error
Could be deleted by name? no
Status string after delete by name: Entry has been deleted
Verify content of zip archive
a.txt

When changing to delete "a.txt" Output should be:
a.txt
Could be deleted by index? yes
b.txt
Status string before delete by name: No error
Could be deleted by name? no
Status string after delete by name: Entry has been deleted
Verify content of zip archive
b.txt

Actual result:
--------------
Output: 

a.txt
b.txt
Could be deleted by index? yes
Status string before delete by name: No error
Could be deleted by name? no
Status string after delete by name: Entry has been deleted
Verify content of zip archive
a.txt
b.txt

When changing to delete "a.txt" Output is:
a.txt
Could be deleted by index? yes
b.txt
Status string before delete by name: No error
Could be deleted by name? no
Status string after delete by name: Entry has been deleted
Verify content if zip archive:
a.txt
b.txt