function HeaderBag::has

Returns true if the HTTP header is defined.

1 call to HeaderBag::has()

ResponseHeaderBag::computeCacheControlValue in vendor/symfony/http-foundation/ResponseHeaderBag.php

Returns the calculated value of the cache-control header.

File

vendor/symfony/http-foundation/HeaderBag.php, line 158

Class

HeaderBag

HeaderBag is a container for HTTP headers.

Namespace

Symfony\Component\HttpFoundation

Code

public function has(string $key) : bool {
    return \array_key_exists(strtr($key, self::UPPER, self::LOWER), $this->all());
}