It isn't recommended to use this method while iterating.
| public clearCache ( ) |
public function testDateTimeMutableReferenceBug()
{
$date = date_create('2007-01-01');
$rrule = new RRule(array('freq' => 'daily', 'count' => 10, 'dtstart' => $date));
$this->assertEquals(date_create('2007-01-01'), $rrule[0]);
$date->modify('+1day');
$rrule->clearCache();
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible of dtstart');
$rrule = new RRule(array('freq' => 'daily', 'count' => 10, 'dtstart' => '2007-01-01'));
// offsetGet
$this->assertEquals(date_create('2007-01-01'), $rrule[0]);
$rrule[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with offsetGet (uncached)');
$rrule[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with offsetGet (cached)');
// iterate
$rrule->clearCache();
foreach ($rrule as $occurrence) {
break;
}
$this->assertEquals(date_create('2007-01-01'), $occurrence);
$occurrence->modify('+1 day');
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with foreach (uncached)');
foreach ($rrule as $occurrence) {
break;
}
$this->assertEquals(date_create('2007-01-01'), $occurrence);
$occurrence->modify('+1 day');
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with foreach (cached)');
// getOccurences
$occurrences = $rrule->getOccurrences();
$this->assertEquals(date_create('2007-01-01'), $occurrences[0]);
$occurrences[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-02'), $occurrences[0]);
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with getOccurences (uncached version)');
$occurrences = $rrule->getOccurrences();
$this->assertEquals(date_create('2007-01-01'), $occurrences[0]);
$occurrences[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-02'), $occurrences[0]);
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with getOccurences (cached version)');
// getOccurrencesBetween
$occurrences = $rrule->getOccurrencesBetween(null, null);
$this->assertEquals(date_create('2007-01-01'), $occurrences[0]);
$occurrences[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-02'), $occurrences[0]);
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with getOccurences (uncached version)');
$occurrences = $rrule->getOccurrencesBetween(null, null);
$this->assertEquals(date_create('2007-01-01'), $occurrences[0]);
$occurrences[0]->modify('+1 day');
$this->assertEquals(date_create('2007-01-02'), $occurrences[0]);
$this->assertEquals(date_create('2007-01-01'), $rrule[0], 'No modification possible with getOccurences (cached version)');
}
