Get the difference in years.
public getDifferenceInYears ( ExpressiveDate $compare = null ) : string | ||
$compare | ExpressiveDate | |
return | string |
public function testGetDateDifferenceInYears() { $past = new ExpressiveDate('January 2010'); $future = new ExpressiveDate('January 2013'); $this->assertEquals(-3, $future->getDifferenceInYears($past)); $this->assertEquals(3, $past->getDifferenceInYears($future)); }