expires() public method

### Examples: $response->expires('now') Will Expire the response cache now $response->expires(new DateTime('+1 day')) Will set the expiration in next 24 hours $response->expires() Will return the current expiration header value
public expires ( string | DateTime | null $time = null ) : string | null
$time string | DateTime | null Valid time string or \DateTime instance.
return string | null
Response Class Documentation
示例#1
0
 /**
  * Tests the cache method
  *
  * @return void
  */
 public function testCache()
 {
     $response = new Response();
     $since = time();
     $time = new \DateTime('+1 day', new \DateTimeZone('UTC'));
     $response->expires('+1 day');
     $expected = ['Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT', 'Last-Modified' => gmdate("D, j M Y H:i:s ", $since) . 'GMT', 'Expires' => $time->format('D, j M Y H:i:s') . ' GMT', 'Cache-Control' => 'public, max-age=' . ($time->format('U') - time())];
     $response->cache($since);
     $this->assertEquals($expected, $response->header());
     $response = new Response();
     $since = time();
     $time = '+5 day';
     $expected = ['Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT', 'Last-Modified' => gmdate("D, j M Y H:i:s ", $since) . 'GMT', 'Expires' => gmdate("D, j M Y H:i:s", strtotime($time)) . " GMT", 'Cache-Control' => 'public, max-age=' . (strtotime($time) - time())];
     $response->cache($since, $time);
     $this->assertEquals($expected, $response->header());
     $response = new Response();
     $since = time();
     $time = time();
     $expected = ['Date' => gmdate("D, j M Y G:i:s ", $since) . 'GMT', 'Last-Modified' => gmdate("D, j M Y H:i:s ", $since) . 'GMT', 'Expires' => gmdate("D, j M Y H:i:s", $time) . " GMT", 'Cache-Control' => 'public, max-age=0'];
     $response->cache($since, $time);
     $this->assertEquals($expected, $response->header());
 }