- use the same type (int) for zval.value.usr.len and zval.value.str.len
- use union "zstr" as char*/UChar* mixture instead of void*
- Z_UNISTR() and Z_UNILEN() no longer check for Z_TYPE()
- nuke int32_t from ZE (not finisned)
- Remove all overloading hooks -> array_read/array_access must be rewritten
- Remove all basic iterators
- Remove all 'spl_' prefixing exposed to user level
- Add RecursiveIterator, RecursiveIteratorIterator
- Add DirectoryIterator, DirectoryTreeIterator
- Add some examples
# The comment block inside ZEND_EXECUTE_HOOK_FUNCTION(ZEND_FE_FETCH)
# is a tricky way to create result = array(key => value) very fast.
# But it is close to overoptimizing.