ID: 31525 Updated by: [EMAIL PROTECTED] Reported By: yml at yml dot com -Status: Open +Status: Feedback -Bug Type: Scripting Engine problem +Bug Type: Zend Engine 2 problem Operating System: Linux (redhat 9) PHP Version: 5.0.3 New Comment:
Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If possible, make the script source available online and provide an URL to it here. Try to avoid embedding huge scripts into the report. Previous Comments: ------------------------------------------------------------------------ [2005-01-13 00:49:01] yml at yml dot com Description: ------------ PHP 5.0.3 using the recommended php.ini with all warnings and errors turned on. RedHat 9. Apache 1.3.33. Config: ./configure --with-apxs=/usr/local/apache/bin/apxs --with-mysql=/usr/local/mysql --prefix=/usr/local/php_5.0.3 --with-mcrypt=/usr/local/lib --with-gd --with-jpeg-dir=/usr/lib --with-zlib-dir=/usr/lib --with-png-dir=/usr/lib --enable-debug --enable-dmalloc --disable-inline-optimization This may be related to bug http://bugs.php.net/31508. Under PHP 4.3.10 the section of code in question causes a busy loop. Under PHP 5 it causes an object to be dropped. More info, sample code and a sample run can be found at: http://www.yml.com/homepage.html?COMP=clog_list&cmd=detail&cs_clog_entries_ref=149 I have a test case that is a radically reduced version of a large body of code. fv_baseComponent extends fv_baseWidget which extends fvTree. I create a minimal fv_baseComponent. It calls a method in the fv_baseWidget base class called getAttributeValue(). getAttributeValue calls getParentControl() which is present in both fv_baseWidget and fv_baseComponent. In fv_baseComponent getParentControl just returns "$this". The returned value is then used to call a method in the fv_baseComponent class. All this happens in the constructor for fv_baseComponent (which I suspect is the cause of the problem). Once the getAttributeValue() is called in the fv_baseComponent constructor, '$this' is no longer a valid object. If I turn on PHP 4 compatibility mode it seems to work. The code works under PHP 4. (however in the full application the same code seems to have problems under PHP 4.3.10 causing a busy loop). If you need to contact me from an email address other than [EMAIL PROTECTED] please use the form at http://www.yml.com/Contact_Yermo.html otherwise I will miss your email in all the spam I get. Reproduce code: --------------- See the download available at: http://www.yml.com/homepage.html?COMP=clog_list&cmd=detail&cs_clog_entries_ref=149 It contains base_widget.php, base_component.php, fvTree.php and test.php. The relevant snippet from test.php contains: $currentComponent =& new fv_baseComponent( $nullVar, $nullVar, $nullVar, "static", $nullVar ); ddt( "After creating fv_baseComponent - currentComponent type is '" . gettype( $currentComponent ) . "'"); $currentComponent->getAttributeValue( "hello" ); // at this point $this is destroyed. Is "unknown type". ddt( "after getAttributeValue() call - currentComponent type is '" . gettype( $currentComponent ) . "'" ); // this method call will fail. $currentComponent->setName( "test" ); ddt( "The end - currentComponent type is '" . gettype( $currentComponent ) . "'"); Expected result: ---------------- PHP should not produce any errors when the above is run. Actual result: -------------- test.php:30 - before class includes test.php:30 - Creating fv_staticCtrl instance test.php:30 - fv_baseComponent Constructor: Before getAttributeValue() call. Type of 'this' is 'object' test.php:30 - fv_basewidget::getAttributeValue() - Object id #1 is 'object' test.php:30 - fv_baseWidget::getAttributeValue() - value 'Hello from varLookupATTRS' - type of parentComponent object is 'object' test.php:30 - fv_baseComponent Constructor: after getAttributeValue() call. Type of 'this' is 'object' Warning: Attempt to assign property of non-object in /usr/local2/WWW/mobie.yml.com/mobie/admin_ui/tests/php_5_test/base_component.php on line 125 test.php:30 - After creating fv_baseComponent - currentComponent type is 'object' test.php:30 - fv_basewidget::getAttributeValue() - Object id #1 is 'object' test.php:30 - fv_baseWidget::getAttributeValue() - value 'Hello from varLookupATTRS' - type of parentComponent object is 'object' test.php:30 - after getAttributeValue() call - currentComponent type is 'unknown type' Fatal error: Call to a member function setName() on a non-object in /usr/local2/WWW/mobie.yml.com/mobie/admin_ui/tests/php_5_test/test.php on line 59 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31525&edit=1
