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ODBC fetch refactoring #19848

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ODBC fetch refactoring #19848

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NattyNarwhal
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@NattyNarwhal NattyNarwhal commented Sep 15, 2025 •
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  • Merge php_odbc_fetch_into into php_odbc_fetch_hash.
    • The implementation was nearly identical, so refactor into a common implementation with some differences in how the result set array is returned.
    • odbc_fetch_into is kind of weird. I don't know if it'd be better to deprecate it and have a more "symmetrical" API that works like odbc_fetch_array.
  • Converts php_odbc_fetch_hash to use ZPP.
    • Opportunistic since I was there anyways.
  • Convert SQLExtendedFetch calls to SQLFetchScroll
  • Convert result type constants to an enum
  • Merge php_odbc_fetch_row into php_odbc_fetch_hash

@NattyNarwhal NattyNarwhal marked this pull request as ready for review September 15, 2025 20:17
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ARM failure unrelated.

FWIW, if this misses 8.5, I'll probably continue some further refactoring in this PR.

@NattyNarwhal
Merge odbc_fetch_into into odbc_fetch_hash
8a1d8cf 
Now that we can assume fetch_hash exists, there's a lot of redundancy in
these functions. Merge their implementations, and smooth over the
differences in how they handle returning their result set as an array.
@NattyNarwhal
Convert php_odbc_fetch_hash to ZPP
453033a
@NattyNarwhal
Use SQLFetchScroll instead of SQLExtendedFetch
5d91ab4 
Fixes phpGH-19522
@NattyNarwhal
Convert result type constants to an enum
a23cbc3
@NattyNarwhal
Implement odbc_fetch_row in terms of php_odbc_fetch_hash
99bb325 
These are also doing extremely similar jobs, but with slightly different
behaviours for the return value (in this case, none, as it's tended to
be used with odbc_result). Unify this too.

The $row value deprecation for 0/-1 is only handled for odbc_fetch_row;
it's too late to do so for PHP 8.5. Should probably unify it for PHP 8.6.
@NattyNarwhal
Rename php_odbc_fetch_hash to remove _hash
770ce9b 
Since this is a much more shared fetch function now.
Girgias
Girgias reviewed Sep 21, 2025
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Can you remove the deprecation? As that would then be a purely refactory PR.

As for the deprecation you would need RM approval and I don't know how they feel about it being this close to RC1 and might be difficult to convince.

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NattyNarwhal commented Sep 21, 2025 •
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Can you remove the deprecation? As that would then be a purely refactory PR.

As for the deprecation you would need RM approval and I don't know how they feel about it being this close to RC1 and might be difficult to convince.

I changed the condition in the inner function to only trigger when it's called with the parameters odbc_fetch_row would call it with, so this shouldn't change the deprecation. (That said, for 8.6, we should probably actually get around to deprecating it for the other functions too, but as you say, not now.)

Girgias
Girgias approved these changes Sep 21, 2025
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The commit title "Convert php_odbc_fetch_hash to ZPP" is misleading, as you are not converting the function to ZPP but to fast ZPP as it was already using ZPP to parse and validate arguments.

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@php/release-managers-85 Your call if it's OK to get this in for RC1.

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Replace SQLExtendedFetch with SQLFetchScroll in ext/odbc
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