public function __construct($value = null)
{
if ($value) {
HeaderValue::assertValid($value);
$this->value = $value;
}
}
/**
* Add a directive
* For directives like 'max-age=60', $value = '60'
* For directives like 'private', use the default $value = true
*
* @param string $key
* @param string|bool $value
* @return CacheControl - provides the fluent interface
*/
public function addDirective($key, $value = true)
{
HeaderValue::assertValid($key);
if (!is_bool($value)) {
HeaderValue::assertValid($value);
}
$this->directives[$key] = $value;
return $this;
}
/**
* Set header field value
*
* @param string $fieldValue
* @return GenericHeader
*/
public function setFieldValue($fieldValue)
{
$fieldValue = (string) $fieldValue;
HeaderValue::assertValid($fieldValue);
if (preg_match('/^\\s+$/', $fieldValue)) {
$fieldValue = '';
}
$this->fieldValue = $fieldValue;
return $this;
}
/**
* Set arbitrary header value
* RFC allows any token as value, 'close' and 'keep-alive' are commonly used
*
* @param string $value
* @return Connection
*/
public function setValue($value)
{
HeaderValue::assertValid($value);
$this->value = strtolower($value);
return $this;
}
public function setRangeUnit($rangeUnit)
{
HeaderValue::assertValid($rangeUnit);
$this->rangeUnit = $rangeUnit;
return $this;
}