Simple PHP cURL HTTP status code checker

php-curl-http-status-code-checker.php

<?php

/**
 * Tests and sets HTTP Header status code based on the response from the
 * $urlToTest.
 *
 * Optionally waits $maxTimeout seconds and uses $defaultStatusCode in
 * order to overwrite status code from $urlToTest. In addition, optionally
 * $printStatusCode to response.
 *
 * @author Matthias Kerstner <matthias@kerstner.at>
 * @version 1.0.0
 * @requires PHP 5.4+ with cURL enabled
 */

// @var <INT> seconds to wait for completion. Set to 0 to disable
$maxTimeout = 10;

// @var <STRING> URL to test HTTP status code for
$urlToTest = 'https://www.yourdomain.com/';

// @var <BOOL> whether to output the Status: ... message on return
$printStatusCode = true;

// @var <INT> default HTTP status code to return if anything runs not
// according to plan. Set to 0 to disable and use response from $urlToTest
// directly
$defaultStatusCode = 0;

// @var <BOOL> set to true to enable debugging for curl
$curlVerbose = false;

// ============================================================================
// DO NOT EDIT BELOW THIS LINE
// ============================================================================
set_time_limit($maxTimeout);

ob_start();

$ch = curl_init($urlToTest);

curl_setopt($ch, CURLOPT_VERBOSE, $curlVerbose);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
curl_setopt($ch, CURLOPT_TIMEOUT, $maxTimeout);

$result = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if ((int) $httpCode !== 200) {
	$httpCode = $defaultStatusCode !== 0 ? $defaultStatusCode : $httpCode;
}

http_response_code($httpCode);

curl_close($ch);

ob_end_clean();

if ($printStatusCode) {
	die('Status: ' . $httpCode);
}

$defaultStatusCode isn't changed from what it's set to before it's checked... so it'll always be 0 when it's checked.

$printStatusCode is never changed before it's checked.