Zip All Files inside Folder via PHP

zip-folder.php

<?php
// increase script timeout value
ini_set("max_execution_time", 300);
// create object
$root = dirname(__FILE__);
$folder = 'folder';

$zip = new ZipArchive();
// open archive
if ( $zip->open( $root . '/test-zip.zip', ZIPARCHIVE::CREATE | ZipArchive::OVERWRITE) !== TRUE) {
    die ("Could not open archive");
}


// Create recursive directory iterator
$files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator( $root . '/' . $folder )
);

foreach ($files as $name => $file) {
    $filePath = str_replace( $root . '/' , '', $file->getRealPath() );
    if ( ! $filePath || $filePath == $root ) {
        continue;
    }
    $newPath = str_replace( $folder . '/', '', $filePath );
    if ( $newPath == $folder || ! $newPath ) {
        continue;
    }
    if ( is_dir($filePath) ) {
        $zip->addEmptyDir( $newPath );
    } else {
        // Add current file to archive
        $zip->addFile( $filePath, $newPath );
    }

}

// close and save archive
$zip->close();
echo "Archive created successfully.";