* @license   https://github.com/laminas/laminas-http/blob/master/LICENSE.md New BSD License
 */
 
namespace Laminas\Http;
 
use ArrayIterator;
use Countable;
use Iterator;
use Laminas\Http\Header\Exception;
use Laminas\Http\Header\GenericHeader;
use Laminas\Loader\PluginClassLocator;
use Traversable;
 
/**
 * Basic HTTP headers collection functionality
 * Handles aggregation of headers
 *
 * @see        http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2
 */
class Headers implements Countable, Iterator
{
    /**
     * @var PluginClassLocator
     */
    protected $pluginClassLoader;
 
    /**
     * @var array key names for $headers array
     */
    protected $headersKeys = [];
 
    /**
     * @var array Array of header array information or Header instances
     */
    protected $headers = [];
 
    /**
     * Populates headers from string representation
     *
     * Parses a string for headers, and aggregates them, in order, in the

Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Symfony\Component\VarDumper\Cloner\Data::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/symfony/var-dumper/Cloner/Data.php:153 Stack trace: #0 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/symfony/var-dumper/Cloner/AbstractCloner.php(252): Laminas\Stratigility\Middleware\ErrorHandler->Laminas\Stratigility\Middleware\{closure}(8192, 'Return type of ...', '/data01/virt854...', 153, Array) #1 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/symfony/var-dumper/Cloner/Data.php(20): Symfony\Component\VarDumper\Cloner\AbstractCloner->Symfony\Component\VarDumper\Cloner\{closure}(8192, 'Return type of ...', '/data01/virt854...', 153) #2 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/composer/ClassLoader.php(444): include('/data01/virt854...') #3 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/data01/virt854...') #4 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/symfony/var-dumper/Cloner/AbstractCloner.php(263): Composer\Autoload\ClassLoader->loadClass('Symfony\\Compone...') #5 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(169): Symfony\Component\VarDumper\Cloner\AbstractCloner->cloneVar('During inherita...', 1) #6 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(208): Whoops\Util\TemplateHelper->dump('During inherita...') #7 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Resources/views/frame_code.html.php(37): Whoops\Util\TemplateHelper->dumpArgs(Object(Whoops\Exception\Frame)) #8 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('/data01/virt854...') #9 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}('/data01/virt854...', Array) #10 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func(Object(Closure), '/data01/virt854...', Array) #11 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Resources/views/panel_details.html.php(1): Whoops\Util\TemplateHelper->render('/data01/virt854...') #12 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('/data01/virt854...') #13 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}('/data01/virt854...', Array) #14 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func(Object(Closure), '/data01/virt854...', Array) #15 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Resources/views/panel_details_outer.html.php(2): Whoops\Util\TemplateHelper->render('/data01/virt854...') #16 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('/data01/virt854...') #17 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}('/data01/virt854...', Array) #18 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func(Object(Closure), '/data01/virt854...', Array) #19 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Resources/views/layout.html.php(23): Whoops\Util\TemplateHelper->render('/data01/virt854...') #20 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('/data01/virt854...') #21 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}('/data01/virt854...', Array) #22 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func(Object(Closure), '/data01/virt854...', Array) #23 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Handler/PrettyPageHandler.php(268): Whoops\Util\TemplateHelper->render('/data01/virt854...') #24 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Run.php(296): Whoops\Handler\PrettyPageHandler->handle(Object(Whoops\Exception\ErrorException)) #25 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Run.php(378): Whoops\Run->handleException(Object(Whoops\Exception\ErrorException)) #26 /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/filp/whoops/src/Whoops/Run.php(408): Whoops\Run->handleError(1, 'During inherita...', '/data01/virt854...', 25) #27 [internal function]: Whoops\Run->handleShutdown() #28 {main} in /data01/virt85441/domeenid/www.minitehnika.ee/test/vendor/symfony/var-dumper/Cloner/Data.php on line 20