This adds support for: $array1 = ['a' => 1, 'b' => 2]; $array2 = ['b' => 3, 'c' => 4]; $array = [...$array1, ...$array2]; // => ['a' => 1, 'b' => 3, 'c' => 4] RFC: https://wiki.php.net/rfc/array_unpacking_string_keys Closes GH-6584.
This only moves the files, adjusts the build system, exports APIs and does minor fixups to make sure the code builds. This does not yet try to make the optimizer usable independently of opcache. Closes GH-6642.