<?php

$zip = new ZipArchive;
if ($zip->open('TapCRMErrorLogs.zip', ZipArchive::CREATE) === TRUE) {
    // Add files to the zip file
    $zip->addFile('TapCRMErrorLogs.log');
    // All files are added, so close the zip file.
    $zip->close();
}
header("Content-type: application/zip");
header("Content-Disposition: attachment; filename=TapCRMErrorLogs.zip");
header("Pragma: no-cache");
header("Expires: 0");
readfile("TapCRMErrorLogs.zip");
exit;