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Add performance improvement section to UPGRADING

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This commit is contained in:
Nikita Popov 2018-12-26 22:26:01 +01:00
parent 70fcbe3524
commit f1c0e671e9
1 changed files with 11 additions and 0 deletions
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11
UPGRADING
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@ -13,6 +13,7 @@ PHP 7.4 UPGRADE NOTES
11. Changes to INI File Handling
12. Windows Support
13. Other Changes
14. Performance Improvements
========================================
@ -224,3 +225,13 @@ PHP 7.4 UPGRADE NOTES
========================================
13. Other Changes
========================================
========================================
14. Performance Improvements
========================================
- Core:
. A specialized VM opcode for the array_key_exists() function has been added,
which improves performance of this function if it can be statically
resolved. In namespaced code, this may require writing \array_key_exists()
or explicitly importing the function.