Bug #74643 [NEW]: zend_read_static_property returns &NULL for extending classes

From: jurigag at gmail dot com Operating system: Ubuntu 14.04 PHP version: 7.0.19 Package: Scripting Engine problem Bug Type: Bug Bug description:zend_read_static_property returns &NULL for extending classes Description: ------------ When extending internal class which has defined static property with null value and accessing this static property in C code using zend_read_static_property there is value returned as &NULL in C code causing some comparisons to fail. Though value in php code of this static property is correctly returned as NULL. This also happens for php 7.1 as well. Test script: --------------- In class init: zend_declare_property_null(test3_test_ce, sizeof("someNull")-1, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC TSRMLS_CC); Access and dump it somwhere(keep in mind you must extends class in php first): zval *tmp = zend_read_static_property(ce, sizeof("someNull")-1, len, (zend_bool) ZEND_FETCH_CLASS_SILENT); // here will be returned &NULL php_var_dump(tmp, 1); // var dumps &NULL if (Z_TYPE_P(tmp) == IS_NULL) // false -- Edit bug report at https://bugs.php.net/bug.php?id=74643&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74643&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74643&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74643&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74643&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74643&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74643&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74643&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74643&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74643&r=support Expected behavior: https://bugs.php.net/fix.php?id=74643&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74643&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74643&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74643&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74643&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74643&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74643&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74643&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74643&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74643&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74643&r=mysqlcfg