__construct(array $headers = array())

Parameters

array

$headers

An array of HTTP headers

string __toString()

Returns the headers as a string.

Return Value

string

The headers

array all()

Returns the headers.

Return Value

array

An array of headers

array keys()

Returns the parameter keys.

Return Value

array

An array of parameter keys

replace(array $headers = array())

Replaces the current HTTP headers by a new set.

Parameters

array

$headers

An array of HTTP headers

add(array $headers)

Adds new headers the current HTTP headers set.

Parameters

array

$headers

An array of HTTP headers

string|string[]|null get(string $key, string|string[]|null $default = null, bool $first = true)

Returns a header value by name.

Parameters

string	$key	The header name
string|string[]|null	$default	The default value
bool	$first	Whether to return the first value or all header values

Return Value

string|string[]|null

The first header value or default value if $first is true, an array of values otherwise

set(string $key, string|string[] $values, bool $replace = true)

Sets a header by name.

Parameters

string	$key	The key
string|string[]	$values	The value or an array of values
bool	$replace	Whether to replace the actual value or not (true by default)

bool has(string $key)

Returns true if the HTTP header is defined.

Parameters

string

$key

The HTTP header

Return Value

bool	true if the parameter exists, false otherwise

bool contains(string $key, string $value)

Returns true if the given HTTP header contains the given value.

Parameters

string	$key	The HTTP header name
string	$value	The HTTP value

Return Value

bool	true if the value is contained in the header, false otherwise

remove(string $key)

Removes a header.

Parameters

string

$key

The HTTP header name

DateTime|null getDate(string $key, DateTime $default = null)

Returns the HTTP header value converted to a date.

Parameters

string	$key	The parameter key
DateTime	$default	The default value

Return Value

DateTime|null

The parsed DateTime or the default value if the header does not exist

Exceptions

RuntimeException

When the HTTP header is not parseable

addCacheControlDirective(string $key, mixed $value = true)

Adds a custom Cache-Control directive.

Parameters

string	$key	The Cache-Control directive name
mixed	$value	The Cache-Control directive value

bool hasCacheControlDirective(string $key)

Returns true if the Cache-Control directive is defined.

Parameters

string

$key

The Cache-Control directive

Return Value

bool	true if the directive exists, false otherwise

mixed|null getCacheControlDirective(string $key)

Returns a Cache-Control directive value by name.

Parameters

string

$key

The directive name

Return Value

mixed|null

The directive value if defined, null otherwise

removeCacheControlDirective(string $key)

Removes a Cache-Control directive.

Parameters

string

$key

The Cache-Control directive

ArrayIterator getIterator()

Returns an iterator for headers.

Return Value

ArrayIterator

An \ArrayIterator instance

int count()

Returns the number of headers.

Return Value

int	The number of headers

protected getCacheControlHeader()

protected array parseCacheControl(string $header)

Parses a Cache-Control HTTP header.

Parameters

string

$header

The value of the Cache-Control HTTP header

Return Value

array

An array representing the attribute values