#45904 [NEW]: extends from a class which is extends from another cause executor failed

From: laruence at yahoo dot com dot cn Operating system: rhel-4.x PHP version: 5.2.6 PHP Bug Type: Scripting Engine problem Bug description: extends from a class which is extends from another cause executor failed Description: ------------ I found when I extends from a class which is also extended from a class cause the complie failed . the parsing process: starr: top_statement_list ; top_statement_list: top_statement_list .... //有省略 ; top_statement: .... //有省略 | class_declaration_statement .... //有省略 ; class_declaration_statement: unticked_class_declaration_statement ; unticked_class_declaration_statement: class_entry_type T_STRING extends_from .... //有省略 ; class_entry_type: T_CLASS .... //有省略 ; extends_from: /* empty */ | T_EXTENDS fully_qualified_class_name .... //有省略 ; fully_qualified_class_name: T_STRING { zend_do_fetch_class(&$$, &$1 TSRMLS_CC); } ; but if class with named fully_qualified_class_name is also a inherited class , it cause executor failed. after I tracing the parser, I found the reason maybe: when opcode ZEND_FETCH_CLASS(op2 is b) which is used to generated class a was executed. the class b was not in the class table yet, because class b is a drived class too ,it also need ZEND_DECLARE_INHERITED_CLASS belong to its to be executed for add itself to class_table. so ,I think this should be a bug, am I wrong? Reproduce code: --------------- <?php class a extends b { }; class b extends c{ }; class c{ }; ?> Expected result: ---------------- PHP Fatal error: Class 'b' not found in /home/xinchen/1.php on line 2 Fatal error: Class 'b' not found in /home/xinchen/1.php on line 2 Actual result: -------------- http://www.laruence.com/2008/08/24/427.html -- Edit bug report at http://bugs.php.net/?id=45904&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=45904&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=45904&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=45904&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=45904&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=45904&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=45904&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=45904&r=needscript Try newer version: http://bugs.php.net/fix.php?id=45904&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=45904&r=support Expected behavior: http://bugs.php.net/fix.php?id=45904&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=45904&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=45904&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=45904&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45904&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=45904&r=dst IIS Stability: http://bugs.php.net/fix.php?id=45904&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=45904&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=45904&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=45904&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=45904&r=mysqlcfg