<?php /** * @see https://github.com/zendframework/zend-http for the canonical source repository * @copyright Copyright (c) 2005-2017 Zend Technologies USA Inc. (http://www.zend.com) * @license https://github.com/zendframework/zend-http/blob/master/LICENSE.md New BSD License */ namespace Zend\Http\Header; /** * @throws Exception\InvalidArgumentException * @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.22 */ class From implements HeaderInterface { /** * @var string */ protected $value; public static function fromString($headerLine) { list($name, $value) = GenericHeader::splitHeaderLine($headerLine); // check to ensure proper header type for this factory if (strtolower($name) !== 'from') { throw new Exception\InvalidArgumentException('Invalid header line for From string: "' . $name . '"'); } // @todo implementation details $header = new static($value); return $header; } public function __construct($value = null) { if ($value) { HeaderValue::assertValid($value); $this->value = $value; } } public function getFieldName() { return 'From'; } public function getFieldValue() { return $this->value; } public function toString() { return 'From: ' . $this->getFieldValue(); } }