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<?php namespace Zend\Stdlib; use DateTimeZone; class DateTime extends \DateTime { public function __construct($time = 'now', DateTimeZone $timezone = null) { // Workaround not required for PHP 5.3.7 or newer if (version_compare(PHP_VERSION, '5.3.7', '>=')) { return parent::__construct($time, $timezone); } // Check if using relative constructs if (!stristr($time, 'last') && !stristr($time, 'first')) { if ($timezone) { return parent::__construct($time, $timezone); } else { return parent::__construct($time); } } // Use current time with constructor to prevent setting 'first_last_day_of' flag. // The branching is required for older PHP to prevent DateTime exception of null timezone. if ($timezone) { parent::__construct('now', $timezone); } else { parent::__construct('now'); } // Set the timestamp by relying on strtotime and avoiding setting the // internal 'first_last_day_of' flag of DateTime object. $this->setTimestamp( strtotime($time, $this->getTimestamp()) ); return $this; } public function modify($modify) { // Workaround not required for PHP 5.3.7 or newer if (version_compare(PHP_VERSION, '5.3.7', '>=')) { return parent::modify($modify); } // Check if using relative constructs if (!stristr($modify, 'last') && !stristr($modify, 'first')) { return parent::modify($modify); } // Set the timestamp by relying on strtotime and avoiding setting the // internal 'first_last_day_of' flag of DateTime object. $parsedTimestamp = strtotime($modify, $this->getTimestamp()); if ($parsedTimestamp === false) { return false; // something went wrong parsing the date } $this->setTimestamp($parsedTimestamp); return $this; } } class classDateTimeTest { protected $revertTz = null; public function setup(){} public function teardown(){ if($this->revertTz){ date_default_timezone_set($this->revertTz); $this->revertTz = null; } } protected function setDefaultTz($tz){ if(!$this->revertTz){ $this->revertTz = date_default_timezone_get(); date_default_timezone_set($tz); } } /** * PHP Bug #62896 Unixtimestamp may take on local times DST flag (this test will only be valid during CEST) * PHP Bug #62561 DateTime add 'P1D' adds 25 hours * * @link https://bugs.php.net/bug.php?id=62896 * @link https://bugs.php.net/bug.php?id=62561 */ public function testBug62896and62561() { $this->setDefaultTz('Europe/Amsterdam'); $tz = new DateTimeZone('Europe/Berlin'); $date = new DateTime('@'.strtotime('2012-08-22 00:00:00 CEST')); $this->assertEquals( '2012-08-21 22:00:00 GMT+0000 (offset 0)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from timestamp, no timezone, after +0 days' ); $date->modify('+0 days'); $this->assertEquals( '2012-08-21 22:00:00 GMT+0000 (offset 0)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from timestamp, no timezone, after +0 days' ); $date = new DateTime('@'.strtotime('2012-08-22 00:00:00 CEST')); $date->setTimezone($tz); $this->assertEquals( '2012-08-22 00:00:00 CEST (offset 7200)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from timestamp, with timezone' ); $date->modify('+0 days'); $this->assertEquals( '2012-08-22 00:00:00 CEST (offset 7200)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from timestamp, with timezone, after +0 days' ); $date = new DateTime('2012-08-22 00:00:00 CEST', $tz); $this->assertEquals( '2012-08-22 00:00:00 CEST (offset 7200)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from a string, with timezone' ); $date->modify('+0 days'); $date = new DateTime('2012-08-22 00:00:00 CEST', $tz); $this->assertEquals( '2012-08-22 00:00:00 CEST (offset 7200)', $date->format('Y-m-d H:i:s T').' (offset '.$date->getOffset().")", 'default tz is Amsterdam, date from a string, with timezone, after +0 days' ); } protected function assertEquals($a, $b, $message = null){ if($a != $b){ throw new \Exception(($message ? $message : "" ) . "\"$a\" != \"$b\"\n"); } } } // run tests $testClass = new \ReflectionClass(__NAMESPACE__.'\classDateTimeTest'); foreach($testClass->getMethods() as $method){ if(substr($method->getShortName(),0, 4) !== 'test') continue; try{ $test = new classDateTimeTest(); $test->setup(); $method->invoke($test); $test->teardown(); }catch(\Exception $e){ echo 'FAIL: '.$method->getShortName().': '.$e->getMessage()."\n"; try{ $test->teardown(); }catch(\Exception $e){} continue; } echo 'PASS: '.$method->getShortName()."\n"; }