PHP script that will scan all the PDF files from particular directory and make a zip, un-link individual PDF file as well

scan_pdf_and_make_zip.php

<?php
//CRON : `/usr/local/bin/ea-php74 /var/www/public_html/scan_pdf_and_make_zip.php 2>&1 | tee /var/www/public_html/scan_pdf.log

$zip = new ZipArchive;
$zip->open('/var/www/public_html/zipHavingPDFs.zip', ZipArchive::CREATE);
$targetFolder = "/var/www/public_html/var/*";

if(file_exists('/var/www/public_html/zipHavingPDFs.zip')) {
        echo  'zipHavingPDFs file is exiss'.PHP_EOL;
        return;
}

foreach (glob($targetFolder) as $file) {    
$ext = pathinfo($file, PATHINFO_EXTENSION);
if ($ext === 'pdf'){
  
      //Remove below comment if you want to remove single PDF file
      //$flag = unlink($file);
	    file_put_contents('/var/www/public_html/var/log/fd.log', $file.'==='.$flag.PHP_EOL , FILE_APPEND | LOCK_EX);
		  $zip->addFile($file);
	}
}
$zip->close();