Bug #51479 [Opn->Bgs]: property_exists now wrong

Edit report at http://bugs.php.net/bug.php?id=51479&edit=1 ID: 51479 Updated by: felipe@php.net Reported by: ian at ianhobson dot co dot uk Summary: property_exists now wrong -Status: Open +Status: Bogus Type: Bug Package: Class/Object related Operating System: Windows PHP Version: 5.3.2 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Previous Comments: ------------------------------------------------------------------------ [2010-04-09 07:44:38] abca_b_cabcom at hotmail dot com Hi ivan, i think you could use the reflection api to handle it http://www.php.net/manual/en/reflectionproperty.isprivate.php ------------------------------------------------------------------------ [2010-04-05 15:26:42] ian at ianhobson dot co dot uk Description: ------------ Now that property_exists returns true for all private properties, there is no way (I know) to test that a property is private before writing to it and causing a fatal error. The previous behaviour was wrong - private properties that are in scope should return true - but the new code is worse. See Bug #50810: property_exists does not work for private I think property_exists should return true for writable properties... which implies a scope... if the user coded $this then the scope is the current scope. If the use gives a class name, then the scope is that class. I have not managed to re-code the routine below to work in 5.3.0 (let alone both 5.3.? and 5.2.?). Test script: --------------- public function setField($fld, $value) { // set the fld to the value if (property_exists($this,$fld)) { $this->$fld = $value; // handles public and protected fields return; } $this->setMapped($fld,$value); // for private vars. } Create a class with the above function. Create a sub-class with a private variable. Call it on the sub-class with fldname and value. In 5.3.0 this crashes with a fatal error. In 5.2.9 it calls setMapped. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51479&edit=1