Bug #74350 [NEW]: defined() not working for $objectinstance::CLASS_CONSTANT

From: Andy_Schmidt at HM-Software dot com Operating system: Windows PHP version: 7.1.3 Package: Class/Object related Bug Type: Bug Bug description:defined() not working for $objectinstance::CLASS_CONSTANT Description: ------------ defined() will function correctly for class constants, if either the class name or a classname variable is used. However, if one tries to check the existence of a constant of the class that was used to instantiate the object, then it will return "not defined". Test script: --------------- class Class_A { const CONST_A = 'value A'; // CONST_B not defined } $class_name = Class_A::class; $object_A = new $class_name(); // Class references work correctly! if ( defined( 'Class_A::CONST_A' ) ) echo 'Class_A::CONST_A defined'; if ( defined( $class_name.'::CONST_A' ) ) echo '$class_name::CONST_A defined'; if ( !defined( 'Class_A::CONST_B' ) ) echo 'No Class_A::CONST_B'; if ( !defined( $class_name.'::CONST_B' ) ) echo 'No $class_name::CONST_B'; echo $object_A::CONST_A; // As expected, result: "value A" ! **** // ***** Yet, using that object reference will report "not" defined! ***** if ( defined( '$object_A::CONST_A' ) ) echo '$object_A::CONST_A defined !!'; else echo 'no $object_A::CONST_A'; // PS: As expected, "Fatal Error: Object of class Class_A could not be converted to string" if ( defined( "$object_A::CONST_A" ) ) echo 'Should cause error, and does'; if ( defined( $object_A.'::CONST_A' ) ) echo 'Should cause error, and does'; Expected result: ---------------- Class_A::CONST_A defined $class_name::CONST_A defined No Class_A::CONST_B No $class_name::CONST_B value A $object_A::CONST_A defined!! Actual result: -------------- Class_A::CONST_A defined $class_name::CONST_A defined No Class_A::CONST_B No $class_name::CONST_B value A no $object_A::CONST_A -- Edit bug report at https://bugs.php.net/bug.php?id=74350&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74350&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74350&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74350&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74350&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74350&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74350&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74350&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74350&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74350&r=support Expected behavior: https://bugs.php.net/fix.php?id=74350&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74350&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74350&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74350&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74350&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74350&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74350&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74350&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74350&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74350&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74350&r=mysqlcfg