PHP Extension

Get the Last-Modified Date Before HTTP Download

See more HTTP Examples

Demonstrates how to send a HEAD request to get the last-modified date of a file on a web server (without downloading the file). PHP Extension

<?php

include("chilkat.php");

$success = false;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$http = new CkHttp();

$resp = new CkHttpResponse();
$success = $http->HttpNoBody('HEAD','https://www.chilkatsoft.com/hamlet.xml',$resp);
if ($success == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

// Examine the response header.
print $resp->header() . "\n";

// Here is a sample response header:

// 	Content-Length: 279658
// 	Content-Type: text/xml
// 	Last-Modified: Thu, 12 May 2016 15:14:08 GMT
// 	Accept-Ranges: bytes
// 	ETag: "c1cd8bee60acd11:0"
// 	Server: Microsoft-IIS/8.5
// 	X-Powered-By: ASP.NET
// 	X-Powered-By-Plesk: PleskWin
// 	Date: Thu, 25 Jul 2019 16:40:54 GMT

// Get the Last-Modified header.
$lastModStr = $resp->getHeaderField('Last-Modified');
// If the header exists...
if ($resp->get_LastMethodSuccess() == true) {
    // Parse the RFC822 format date/time string
    $ckdt = new CkDateTime();
    $ckdt->SetFromRfc822($lastModStr);

    // If we want to access individual date/time parts (in the local timezone)
    $dt = new CkDtObj();
    $ckdt->ToDtObj(true,$dt);

    print 'day/month/year = ' . $dt->get_Day() . '/' . $dt->get_Month() . '/' . $dt->get_Year() . "\n";
}


?>