/**
  * @param string $valueString
  * @return static
  */
 public static function fromString($valueString)
 {
     if ($valueString === "") {
         return static::fromNull();
     } else {
         return parent::fromString($valueString);
     }
 }
Beispiel #2
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 public function testToString()
 {
     $dateTime = DateTime::fromString('2013-04-01 01:03:02');
     $this->assertEquals('2013-04-01 01:03:02', "{$dateTime}");
 }