Bug #67750 [NEW]: Subscript Operator claims empty brackets invalid for string

From: ralph-bugsphpnet at inputplus dot co dot uk Operating system: PHP version: Irrelevant Package: PHP Language Specification Bug Type: Bug Bug description:Subscript Operator claims empty brackets invalid for string Description: ------------ https://github.com/php/php-langspec/blob/master/spec/10-expressions.md#subscript-operator says *expression* can be omitted only if *subscript-expression* is used in a modifiable-lvalue context and *postfix-expression* does not designate a string. Yet this is valid: $a = ""; $a[] = "y"; var_dump($a); I've omitted expression, postfix-expression is a string, just an empty one. The result is array("y"); the original empty string disappears. See http://3v4l.org/vg7Oe for more. Test script: --------------- <?php $a = ""; $a[] = "y"; var_dump($a); $b = "x"; $b[] = "y"; var_dump($b); -- Edit bug report at https://bugs.php.net/bug.php?id=67750&edit=1 --