UPGRADING.INTERNALS

PHP 8.4 INTERNALS UPGRADE NOTES

1. Internal API changes

2. Build system changes

3. Module changes

4. OpCode changes

5. SAPI changes

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1. Internal API changes
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2. Build system changes
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3. Module changes
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 a. ext/dom
   - dom_read_t and dom_write_t now expect the function to return zend_result
     instead of int.
   - The macros DOM_NO_ARGS() and DOM_NOT_IMPLEMENTED() have been removed.

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4. OpCode changes
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5. SAPI changes
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