(PHP Extension) HTTP HEAD Request

Sends an HTTP HEAD request and gets the response.

Note: The response to an HTTP HEAD request is always just the response header. The reponse body is always 0 length (thus the reason it's called a "HEAD" request..)

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux

<?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();

// If the URL uses "https://", then the connection will be TLS.
// Otherwise it will be TCP.

// A failure is when we don't get any response.  It could be a timeout, an inability to connect, etc.
// For example, a "404 Not Found" response is still a response, and thus deemed success in terms of the API..

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

// Examine the response.
print 'Status Code = ' . $resp->get_StatusCode() . "\n";
print 'Status Line = ' . $resp->statusLine() . "\n";
print 'Status Text = ' . $resp->statusText() . "\n";
print 'Full Response Header:' . "\n";
print $resp->header() . "\n";
print '----' . "\n";
$numHeaderFields = $resp->get_NumHeaderFields();
print 'Num Header Fields: ' . $numHeaderFields . "\n";

for ($i = 0; $i <= $numHeaderFields - 1; $i++) {
    print $resp->getHeaderName($i) . ': ' . $resp->getHeaderValue($i) . "\n";
}


?>