public function setBirthday( $value )
	{
		if ( $value === $this->getBirthday() ) { return; }

		if( $value !== null )
		{
			$this->_checkDateOnlyFormat( $value );
			$value = (string) $value;
		}

		$this->_values['birthday'] = $value;
		$this->setModified();
	}
public function setBirthday( $value )
	{
		if ( $value === $this->getBirthday() ) { return; }

		if( $value !== null )
		{
			$this->_checkDateOnlyFormat( $value );
			$value = (string) $value;
		}

		$this->_values['birthday'] = $value;
		$this->setModified();
	}
public function setBirthday ( $ value ) { if ( $ value === $ this -> getBirthday ( ) ) { return ; } if ( $ value !== null ) { $ this -> _checkDateOnlyFormat ( $ value ) ; $ value = ( string ) $ value ; } $ this -> _values [ 'birthday' ] = $ value ; $ this -> setModified ( ) ; }
Sets the birthday of the customer item.

@param string $value Birthday of the customer item
Sets the birthday of the customer item .