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GeezerVison is showing github.com — php-src/UPGRADING at master · jpalus/php-src

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PHP 8.4 UPGRADE NOTES
1. Backward Incompatible Changes
2. New Features
3. Changes in SAPI modules
4. Deprecated Functionality
5. Changed Functions
6. New Functions
7. New Classes and Interfaces
8. Removed Extensions and SAPIs
9. Other Changes to Extensions
10. New Global Constants
11. Changes to INI File Handling
12. Windows Support
13. Other Changes
14. Performance Improvements
========================================
1. Backward Incompatible Changes
========================================
- DOM:
. New methods and constants were added to some DOM classes. If you inherit
from these and you happen to have a method or property with the same name,
you might encounter errors if the declaration is incompatible.
Consult sections 2. New Features and 6. New Functions for a list of
newly implemented methods and constants.
- SimpleXML:
. Get methods called, or casting to a string on a SimpleXMLElement will no
longer implicitly reset the iterator data, unless explicitly rewound.
For example, casting an element to a string within a foreach loop would
cause an infinite loop because it destroyed the current iterator data.
This is no longer the case as a consequence of the bugfixes for GH-12192,
GH-12208, #55098.
- Standard:
. round() now validates the value of the $mode parameter and throws a ValueError
for invalid modes. Previously invalid modes would have been interpreted as
PHP_ROUND_HALF_UP.
- XSL:
. XSLTProcessor::setParameter() will now throw a ValueError when its arguments
contain null bytes. This never actually worked correctly in the first place,
which is why it throws an exception nowadays.
========================================
2. New Features
========================================
- DOM:
. Added constant DOMNode::DOCUMENT_POSITION_DISCONNECTED.
. Added constant DOMNode::DOCUMENT_POSITION_PRECEDING.
. Added constant DOMNode::DOCUMENT_POSITION_FOLLOWING.
. Added constant DOMNode::DOCUMENT_POSITION_CONTAINS.
. Added constant DOMNode::DOCUMENT_POSITION_CONTAINED_BY.
. Added constant DOMNode::DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC.
- XSL:
. It is now possible to use parameters that contain both single and double
quotes.
========================================
3. Changes in SAPI modules
========================================
========================================
4. Deprecated Functionality
========================================
========================================
5. Changed Functions
========================================
- Standard:
. The internal implementation for rounding to integers has been rewritten
to be easier to verify for correctness and to be easier to maintain.
Some rounding bugs have been fixed as a result of the rewrite. For
example previously rounding 0.49999999999999994 to the nearest integer
would have resulted in 1.0 instead of the correct result 0.0. Additional
inputs might also be affected and result in different outputs compared to
earlier PHP versions.
========================================
6. New Functions
========================================
- DOM:
. Added DOMNode::compareDocumentPosition().
========================================
7. New Classes and Interfaces
========================================
========================================
8. Removed Extensions and SAPIs
========================================
========================================
9. Other Changes to Extensions
========================================
========================================
10. New Global Constants
========================================
- Intl:
. The IntlDateFormatter class exposes now the new PATTERN constant
reflecting udat api's UDAT_PATTERN.
========================================
11. Changes to INI File Handling
========================================
========================================
12. Windows Support
========================================
========================================
13. Other Changes
========================================
========================================
14. Performance Improvements
========================================
* The performance of DOMNode::C14N() is greatly improved for the case without
an xpath query. This can give a time improvement of easily two order of
magnitude for documents with tens of thousands of nodes.
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