Bug #66089 [Opn]: The result of post-increment/post-decrement operation is included in result

Edit report at https://bugs.php.net/bug.php?id=66089&edit=1 ID: 66089 User updated by: alexanderhook at gmail dot com Reported by: alexanderhook at gmail dot com Summary: The result of post-increment/post-decrement operation is included in result Status: Open Type: Bug Package: Variables related -Operating System: Windows, Ubuntu +Operating System: Windows 7, Ubuntu 12 PHP Version: 5.4.21 Block user comment: N Private report: N New Comment: Test: $i = 1; $sum = $i + ($i++); assert($sum == 2); $i = 1; $sum = $i + $i--; assert($sum == 2); Previous Comments: ------------------------------------------------------------------------ [2013-11-13 14:16:37] alexanderhook at gmail dot com Description: ------------ In some cases, if variable is has participation in expression with post-increment, then the result of post-increment operation is included in the result of the whole expression. Test script: --------------- $i = 1; $sum = $i + ($i++); //3 , but should be 2 $i = 1; $sum = 0 + $i + ($i++); //2 , correct $i = 1; $sum = $i + $i + ($i++); //3 , correct $i = 1; $sum = $i + $i--; // 1 $i = 1; $sum = 0 + $i + $i--; // 2 $i = 1; $sum = $i + $i + $i--; // 3 Expected result: ---------------- $i = 1; $sum = $i + ($i++); //2 $i = 1; $sum = 0 + $i + ($i++); //2 $i = 1; $sum = $i + $i + ($i++); //3 $i = 1; $sum = $i + $i--; // 2 $i = 1; $sum = 0 + $i + $i--; // 2 $i = 1; $sum = $i + $i + $i--; // 3 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66089&edit=1