PHP - Reading Zip File

<?php
   
$zip = new ZipArchive();

if(!$zip->open('po.zip')){
    echo "Could not open zip file";
}

?>

<h1>Num Files: <?php echo $zip->numFiles;?></h1>

<?php

for($i=0;$i<$zip->numFiles;$i++){
    $file = $zip->statIndex($i);
    echo $file['name']." ".$file['size']." <br/>";
}

$zip->close();

?>

PHP - Reading Zip File