i (yani ubuntu 9.10 altında iyi çalışıyor) Bu şekilde tanımlanmış bir işlevi için kullanılır:

public function __toString( $surNameFirst = false) { 
     if ($this->givenName . $this->surname == '') return null;
     else .......
}

after i have updated my machine to ubuntu 10.04( and php version Version: 5.3.2-1ubuntu4.2 ) my app starts to show an error like this one ==>

Ölümcül hata: Yöntem Application_Model_Person :: () / home / speshu / Kalkınma / argümanlarını alamaz __toString nerede / uygulama / modelleri / person.php hattında 39

Call Stack:
    0.0001     616576   1. {main}() /home/speshu/Development/where/public/index.php:0  
    0.0294    1008248   2. Zend_Application->bootstrap() /home/speshu/Development/where/public/index.php:35
    0.0294    1008328   3. Zend_Application_Bootstrap_BootstrapAbstract->bootstrap() /usr/local/lib/ZendFramework-1.10.0/library/Zend/Application.php:355
    0.0294    1008328   4. Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap() /usr/local/lib/ZendFramework-1.10.0/library/Zend/Application/Bootstrap/BootstrapAbstract.php:582
    0.0387    1991416   5. Zend_Application_Bootstrap_BootstrapAbstract->_executeResource() /usr/local/lib/ZendFramework-1.10.0/library/Zend/Application/Bootstrap/BootstrapAbstract.php:618
    0.0387    1991776   6. Bootstrap->_initDoctrineCLI() /usr/local/lib/ZendFramework-1.10.0/library/Zend/Application/Bootstrap/BootstrapAbstract.php:665
    0.0387    1991856   7. Bootstrap->_initDoctrine() /home/speshu/Development/where/application/Bootstrap.php:66
    0.0406    2245200   8. Doctrine_Core::loadModels() /home/speshu/Development/where/application/Bootstrap.php:93