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ext/json: Add SSE2/NEON fast path for clean-string runs in php_json_escape_string() #23675

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ext/json: Add SSE2/NEON fast path for clean-string runs in php_json_escape_string() #23675

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5 changes: 5 additions & 0 deletions NEWS
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,11 @@ PHP NEWS
(Ilia Alshanetsky)
. Added IntlNumberFormatter::createFromSkeleton() (GH-24165). (David Carlier)

- JSON:
. Added a vectorized (SSE2/NEON) fast path to php_json_escape_string()
that bulk-copies runs of bytes which need no escaping, speeding up
json_encode() on ASCII-heavy strings. (adapik)

- Lexbor:
. Merge patches lexbor/lexbor@8a14bc0 and lexbor/lexbor@f67ce4b, fixing a
heap buffer overflow in :lexbor-contains() parsing and buffer overflows
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4 changes: 4 additions & 0 deletions UPGRADING
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Expand Up @@ -173,6 +173,10 @@ PHP 8.7 UPGRADE NOTES
target does not keep is now released at that assignment instead of after
the last one.

- JSON:
. Added an SSE2/NEON fast path for encoding strings that need no
escaping, speeding up json_encode() on ASCII-heavy payloads.

- Standard:
. Improved performance of strcspn() and strpbrk() when searching longer strings
with a single-byte character mask.
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