In PHP is it possible to inspect content of a Zip file without extracting its content first?

I have seen the ZipArchive class in PHP which lets you read zip files. But I'm wondering if there is a way to iterate though its content without extracting the file first

As found as a comment on http://www.php.net/ziparchive:

The following code can be used to get a list of all the file names in a zip file.

<?php
$za = new ZipArchive(); 

$za->open('theZip.zip'); 

for( $i = 0; $i < $za->numFiles; $i++ ){ 
    $stat = $za->statIndex( $i ); 
    print_r( basename( $stat['name'] ) . PHP_EOL ); 
}
?>

http://www.php.net/manual/en/function.zip-entry-read.php

<?php
$zip = zip_open("test.zip");

if (is_resource($zip))
  {
  while ($zip_entry = zip_read($zip))
    {
    echo "<p>";
    echo "Name: " . zip_entry_name($zip_entry) . "<br />";

    if (zip_entry_open($zip, $zip_entry))
      {
      echo "File Contents:<br/>";
      $contents = zip_entry_read($zip_entry);
      echo "$contents<br />";
      zip_entry_close($zip_entry);
      }
    echo "</p>";
  }

zip_close($zip);
}
?>