PHP HTTP::Date方法代码示例

function http_date_string()
{
    $result = FALSE;
    if (class_exists('HTTP')) {
        $result = HTTP::Date(time());
    }
    return $result;
}

 public function getHeadersAsString()
 {
     $text = sprintf("HTTP/%s %s %s" . self::CRLF, $this->version, $this->code, self::resolveStatusCode($this->code));
     $this->setHeader(self::DATE, HTTP::Date(time()));
     if ($this->body && !$this->existsHeader('Content-Type')) {
         $this->setContentType('text/html;charset=UTF-8');
     }
     $text .= parent::getHeadersAsString() . self::CRLF;
     return $text;
 }

 public function toString()
 {
     $out = $this->name . '=' . urldecode($this->value);
     if ($this->expire !== null) {
         $out .= '; expires=' . HTTP::Date($this->expire);
     }
     if ($this->path !== null) {
         $out .= '; path=' . $this->path;
     }
     if ($this->domain !== null) {
         $out .= '; domain=' . urlencode($this->domain);
     }
     if ($this->secure === true) {
         $out .= '; secure';
     }
     return $out;
 }

 /**
  * Set Header
  * 
  * The default value for the Last-Modified header will be current
  * date and atime if $value is omitted.
  * 
  * @access  public
  * @return  bool    Returns true on success or false if $key was empty or
  *                  $value was not of an scalar type.
  * @param   string  $key The name of the header.
  * @param   string  $value The value of the header. (NULL to unset header)
  */
 function setHeader($key, $value = null)
 {
     if (empty($key) || isset($value) && !is_scalar($value)) {
         return false;
     }
     $key = strToLower($key);
     if ($key == 'last-modified') {
         if (!isset($value)) {
             $value = HTTP::Date(time());
         } elseif (is_numeric($value)) {
             $value = HTTP::Date($value);
         }
     }
     if (isset($value)) {
         $this->_headers[$key] = $value;
     } else {
         unset($this->_headers[$key]);
     }
     return true;
 }

 function testpost()
 {
     require_once 'HTTP/Request.php';
     $r =& new HTTP_Request($this->testScript);
     $r->setMethod(HTTP_REQUEST_METHOD_GET);
     $r->sendRequest();
     $lm = $r->getResponseHeader('last-modified');
     $r->setMethod(HTTP_REQUEST_METHOD_POST);
     $r->sendRequest();
     $this->assertEquals(200, $r->getResponseCode(), 'HTTP 200 Ok (POST without If-Modified-Since)');
     $r->addHeader('If-Modified-Since', HTTP::Date(strtotime('yesterday')));
     $r->sendRequest();
     $this->assertEquals(200, $r->getResponseCode(), 'HTTP 200 Ok (POST with If-Modified-Since == yesterday)');
     $r->addHeader('If-Modified-Since', HTTP::Date(time() - 3));
     $r->sendRequest();
     $this->assertEquals(200, $r->getResponseCode(), 'HTTP 200 Ok (POST with If-Modified-Since == now)');
     $r->addHeader('If-Modified-Since', HTTP::Date($lm));
     sleep(3);
     $r->sendRequest();
     $this->assertEquals(200, $r->getResponseCode(), 'HTTP 200 Ok (POST with If-Modified-Since == Last-Modified)');
     $this->assertEquals(HTTP::Date(), $r->getResponseHeader('last-modified'), 'POST time() == Last-Modified');
     unset($r);
 }

 /**
  * Set "Last-Modified"
  *
  * This is usually determined by filemtime() in HTTP_Download::setFile()
  * If you set raw data for download with HTTP_Download::setData() and you
  * want do send an appropiate "Last-Modified" header, you should call this
  * method.
  * 
  * @access  public
  * @return  void
  * @param   int     unix timestamp
  */
 function setLastModified($last_modified)
 {
     $this->lastModified = HTTP::Date((int) $last_modified);
     $this->headers['Last-Modified'] = (int) $last_modified;
 }

 function testdateToTimestamp()
 {
     $h =& new HTTP_Header();
     $this->assertEquals(strtotime($d = HTTP::Date()), $h->dateToTimestamp($d));
     unset($h);
 }