HeaderBag
class HeaderBag implements IteratorAggregate, Countable
HeaderBag is a container for HTTP headers.
Methods
| __construct(array $headers = array()) | ||
| string | __toString() Returns the headers as a string. | |
| array | all() Returns the headers. | |
| array | keys() Returns the parameter keys. | |
| replace(array $headers = array()) Replaces the current HTTP headers by a new set. | ||
| add(array $headers) Adds new headers the current HTTP headers set. | ||
| string|array | get(string $key, mixed $default = null, bool $first = true) Returns a header value by name. | |
| set(string $key, string|array $values, bool $replace = true) Sets a header by name. | ||
| bool | has(string $key) Returns true if the HTTP header is defined. | |
| bool | contains(string $key, string $value) Returns true if the given HTTP header contains the given value. | |
| remove(string $key) Removes a header. | ||
| null|DateTime | getDate(string $key, DateTime $default = null) Returns the HTTP header value converted to a date. | |
| addCacheControlDirective(string $key, mixed $value = true) Adds a custom Cache-Control directive. | ||
| bool | hasCacheControlDirective(string $key) Returns true if the Cache-Control directive is defined. | |
| mixed|null | getCacheControlDirective(string $key) Returns a Cache-Control directive value by name. | |
| removeCacheControlDirective(string $key) Removes a Cache-Control directive. | ||
| ArrayIterator | getIterator() Returns an iterator for headers. | |
| int | count() Returns the number of headers. |
Details
__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|array get(string $key, mixed $default = null, bool $first = true)
Returns a header value by name.
Parameters
| string | $key | The header name |
| mixed | $default | The default value |
| bool | $first | Whether to return the first value or all header values |
Return Value
| string|array | The first header value if $first is true, an array of values otherwise |
set(string $key, string|array $values, bool $replace = true)
Sets a header by name.
Parameters
| string | $key | The key |
| string|array | $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 |
null|DateTime 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
| null|DateTime | 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 |
© 2004–2017 Fabien Potencier
Licensed under the MIT License.
http://api.symfony.com/3.3/Symfony/Component/HttpFoundation/HeaderBag.html