public function testDateTime() { $result = SimpleValidator::dateTime("1993-09-20"); $this->assertEquals(true, $result); $result = SimpleValidator::dateTime("2000-02-29"); $this->assertEquals(true, $result); $result = SimpleValidator::dateTime("1900-02-29"); $this->assertEquals(false, $result); $result = SimpleValidator::dateTime("0000-02-29"); $this->assertEquals(false, $result); $result = SimpleValidator::dateTime("0000-4-31"); $this->assertEquals(false, $result); }