Avoid crash for reset/end/next/prev() on ffi classes #9711
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This will work of course, but I think it's safer to make a change in ext/ffi and return a mutable array. see #9716 |
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I'll take a deeper look on Monday (January 30). |
As it seems to be fixing crashes I would say yes. |
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(And any PECLs returning `zend_empty_array` in the handler->get_properties overrides) Closes phpGH-9697 This is similar to the fix used in d9651a9 for array_walk. This should make it safer for php-src (and PECLs, long-term) to return the empty immutable array in `handler->get_properties` to avoid wasting memory. See php#9697 (comment) The only possible internal iterator position for the empty array is at the end of the empty array (nInternalPointer=0). The `zend_hash*del*` helpers will always set nInternalPointer to 0 when an array becomes empty, regardless of previous insertions/deletions/updates to the array.
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(And any PECLs returning
&zend_empty_arrayin the handler->get_properties overrides to save memory)Closes GH-9697
This is similar to the fix used in d9651a9 for array_walk.
This should make it safer for php-src (and PECLs, long-term) to return the empty immutable array in
handler->get_propertiesto avoid wasting memory. See #9697 (comment)The only possible internal iterator position for the empty array is at the end of the empty array (nInternalPointer=0).
The
zend_hash*del*helpers will always set nInternalPointer to 0 when an array becomes empty,regardless of previous insertions/deletions/updates to the array.